USCIS Service Centers and Field Offices

What Are USCIS Service Centers?

USCIS service centers are large processing sites run by the Service Center Operations Directorate (SCOPS). They decide benefit requests that do not need an interview, such as many employment petitions and work permits. As of July 2026, USCIS names five of them, and none serves walk-in visitors.

The five centers USCIS names

The SCOPS page, updated July 17, 2026, lists the California Service Center (CSC), Nebraska Service Center (NSC), Potomac Service Center (PSC), Texas Service Center (TSC) and Vermont Service Center (VSC). It does not list the National Benefits Center, which sits under a different directorate.

What service centers do not do

Service centers do not hold interviews, run oath ceremonies, take fingerprints, take public calls or accept forms over a counter. To speak with someone, use the USCIS Contact Center or your online account; our uscis case help hub maps every route.

USCIS Service Centers vs Field Offices: What Is the Difference?

The difference is the type of work. USCIS service centers decide cases from the paper or electronic file alone. Field offices handle cases that need a person in the room: interviews, naturalization ceremonies and in-person appointments. Many cases start at a center or the NBC and finish at a field office.

Paper review versus in-person work

A service center officer reads your forms and evidence, then approves, denies or asks for more. A field office officer also meets you, checks originals and takes testimony under oath, which is why most family green card and citizenship cases end there.

Side-by-side comparison

The table sets the two office types next to each other on who works there, whether you can visit and how each one contacts you.

The practical rule: write or call about a center case, and show up only where a notice tells you to.

Each USCIS Service Center at a Glance

Each USCIS service center has a short code, a receipt prefix tied to its older name, and no public mailing counter. USCIS does not publish a fixed list of forms for each center, because work is shared by product line and moved to balance workloads.

Master table of centers

Each row lists one office, the short code used on notices and the receipt prefix that starts its case numbers.

The last two columns never change: no center takes visitors, and every form goes to its own filing address.

How to read this table

The code (NSC, TSC) is how notices name a center. The prefix (LIN, SRC) starts your receipt number and keeps an older name. For the full decoder, including IOE and MCT, see our uscis receipt number guide.

Nebraska Service Center

The Nebraska Service Center (NSC) is one of the five USCIS service centers. Its receipt numbers start with LIN, from its older name, the Lincoln Service Center. It decides cases on paper and has no public office. A LIN receipt tells you where the case began, not where it sits today.

What the Nebraska Service Center handles

USCIS organizes center work by product line: business, family, humanitarian and student cases. Any center can hold several lines, and files move between centers. USCIS expedite guidance, for example, sends attorneys to Nebraska or Vermont for certain U visa cases, depending on where the file sits.

Are Nebraska Service Center Reviews Reliable?

Forum threads rate the Nebraska Service Center as fast or slow, but these are personal stories, not data. Speed depends on form, category and workload. Compare offices for your exact form in the official processing times tool instead. A single fast approval online proves little about your own file.

What Is the National Benefits Center (NBC)?

The National Benefits Center (NBC) is a USCIS processing office under the Field Operations Directorate, not SCOPS. It does centralized front-end processing for cases that need a field office interview, mainly family-based Form I-485 and Form N-400. It also fully decides some Forms I-765 and I-131.

Front-end processing for interview cases

For an interview case, the NBC checks the file and runs early steps so the local field office can interview you. A family green card case may show an NBC receipt and later move to a field office. That move is normal.

NBC cases decided without an interview

USCIS says the NBC also fully decides some Form I-765 work permit and Form I-131 travel document requests, plus legalization, LIFE Act and some adoption cases. In those cases, no field office is involved.

Is the NBC a Service Center? MSC and NBC Explained

Not formally. USCIS lists five service centers, and the NBC is separate. People call it the "NBC service center" because it works like one: no visitors, paper review, mailed notices. Its receipts start with NBC or MSC. For you, the label matters less than the next step: most NBC cases move on to a field office.

Why the old MSC label still appears

The USCIS congressional guide says MSC stood for the Missouri Service Center, now the National Benefits Center. Some notices still carry MSC, so "USCIS MSC" and "NBC service center" mean the same office.

Can You Visit the National Benefits Center?

No. People search for National Benefits Center photos to check the place is real. It is a real USCIS office but not a public site: no drop-offs, appointments or pickups. Any website offering an NBC "visit" is not USCIS. Ask about an NBC case through the Contact Center.

Texas Service Center

The Texas Service Center (TSC) is one of the five USCIS service centers named by SCOPS. Its receipts start with SRC, from its older name, the Southern Regional Center. Like the others, it reviews cases on paper and does not receive visitors or answer public calls.

SRC receipts in practice

An SRC prefix means the Texas center first received the filing, not that the case is still there. Case Status Online, your account and any transfer notice show where it is now. Treat the prefix as a starting point.

Texas Service Center is not a Houston or Dallas office

The Texas Service Center is a processing site, not a local office. Interviews in Houston, Dallas or elsewhere in Texas happen at field offices, which you find with the Field Office Locator and visit only by appointment.

California Service Center

The California Service Center (CSC) is one of the five USCIS service centers. Its receipts start with WAC, from the older Western Adjudication Center name. It decides cases on paper, has no public counter, and is different from any California field office you might visit.

WAC receipts and California filings

A WAC prefix means the California center first logged the case. Where you live does not decide the center: USCIS routes by form, category and workload, so a Texan can hold a WAC receipt.

California immigration offices for interviews

For an interview or in-person help, you need a California immigration office of the field office type, listed by ZIP code in the locator. The California Service Center will never appear on an interview notice.

Vermont Service Center

The Vermont Service Center (VSC) is one of the five USCIS service centers. Its receipts start with EAC, from the older Eastern Adjudication Center name. It reviews many case types on paper and, like the others, has no public counter or phone line.

EAC receipts

An EAC prefix means the Vermont center first received the case, and it stays even if the file moves. If your account shows a different office, trust the newest notice and account history.

Does the Vermont Service Center Handle T and U Visa Cases?

USCIS guidance names a Humanitarian Division at Vermont for some victim-based cases. The USCIS expedite page tells unrepresented T visa petitioners they may write to that division, and lists Vermont emails for law enforcement on T and U cases. These routes are for those case types only.

Potomac Service Center

The Potomac Service Center (PSC) is one of the five USCIS service centers named on the SCOPS page. Its receipt prefix is YSC. It is a processing site with no public access, and it does not have a separate public mailing address for filing forms.

YSC receipts

YSC receipts are less common, so people think they are a mistake. They are not: the USCIS congressional guide lists YSC as the Potomac prefix. Check a YSC case in Case Status Online like any other.

Why you never mail anything to Potomac

Forms go to the address on each form's filing page, not to a center you have heard of. If a Potomac officer needs evidence, the request names the exact return address.

Which USCIS Service Center Handles My Case?

Your Form I-797C receipt notice is the first clue. Its prefix shows where USCIS first received the case. For the current office, check your USCIS online account, read any transfer notice, or ask the Contact Center. You cannot choose a center yourself.

Start with the receipt notice

The receipt number sits near the top of the notice: 3 letters + 10 digits (13 characters), e.g. EAC2512345678; leave out dashes. Note the prefix and the receipt date; both matter when you check processing times.

When the case moves

USCIS may move a case to another center, the NBC or a field office, usually with a notice. Our case was transferred page explains what that status means for timing.

Does the Receipt Prefix Tell You Where Your Case Is Now?

No. The USCIS congressional guide says the prefix shows where the case was first received. A case can move later and keep its old prefix. To find where your case sits today, rely on recent notices and your online account, not the three letters.

What the prefix can tell you

The prefix shows the starting office and, for IOE, that the case was filed online. It does not show the current office, the officer or how far along the case is. Our ioe case status guide covers online-filed cases in detail.

Find the current office

• Sign in to your USCIS online account and read the case history.
• Look for any transfer or interview notice in your mail.
• Ask the Contact Center agent which office has the file.
• Check whether your interview notice names a field office.

Can You Visit or Call USCIS Service Centers?

No. USCIS service centers have no public reception or appointment system, and their staff do not take public calls. If you show up at the building, you will be turned away. Questions go to the USCIS Contact Center or your online account.

The phone route instead

Call 800-375-5283 (TTY: 800-767-1833). From abroad, use 212-620-3418 (callers outside the U.S.). Live calls and chat: Monday to Friday, 8 a.m. to 8 p.m. Eastern. Have your receipt number ready. Our uscis contact number guide explains how to reach a live agent.

When a service request helps

An agent can send a service request to the center that holds your file. That is how a center learns about a missing notice, a delay or an expedite need. Keep the reference number.

Can You Mail Forms Directly to a Service Center?

Usually not. You send most paper forms to the lockbox or direct filing address listed on that form's "Where to File" page. USCIS then routes the case to a center or the NBC. Sending a form to a service center street address you found online can delay or reject it.

Lockbox and direct filing addresses

USCIS publishes filing addresses for each form, often split by category and state. A lockbox opens mail, collects fees and sends files on. Check the form page on the day you mail.

The October 7, 2026 address change

New USCIS mailing addresses from Oct. 7, 2026; old addresses accepted if postmarked by Nov. 9, 2026. I-140 wasn't in the Oct. 7, 2026 address change, but I-907 premium addresses were. If you saved an address before October 2026, check it again.

Which USCIS Service Center Is the Fastest?

No USCIS service center is always fastest. Speed depends on the form, the category and each center's workload at that moment. A center can be quick for one category and slow for another, and USCIS moves cases to even out work.

Check the tool for your office

Open the uscis processing times guide, then the official tool. Choose your form, category and office. The USCIS tool shows how long it took to finish 80% of cases in the past 6 months. That figure describes past cases, not a promise for yours. You cannot ask USCIS to move your case to a faster center.

What Is a USCIS Field Office?

A USCIS field office is a local office that handles in-person work: interviews for non-asylum cases such as green card and citizenship cases, naturalization ceremonies, and appointment-based help. There are 88 USCIS field offices, organized under 4 regional and 16 district offices.

Interviews and oath ceremonies

Most family-based Form I-485 and Form N-400 cases end with a field office interview, and many oath ceremonies happen there too. The notice gives the office, date, time and what to bring.

In-person appointments for help

Field offices also offer in-person appointments, for example to pay for an emergency advance parole request. Request one first: Request an in-person appointment online at my.uscis.gov/en/appointment/v2 or call 800-375-5283.

Finding Your Local Field Office

Use the Field Office Locator on uscis.gov and search by ZIP code. USCIS says your interview or appointment notice may name a different office from the nearest one, and the notice is what counts on the day. Search the locator before booking travel, because offices sometimes relocate.

Using the Field Office Locator

On the USCIS Field Offices page, enter your ZIP code to get the office that serves your area. The "Find a USCIS Office" section also lists asylum offices, ASCs and international offices.

Your notice beats the map

Cases are assigned by jurisdiction and workload, not distance. If your notice names a farther office, go there. If it is wrong because you moved, update your address first, then ask the Contact Center.

Where Is the Immigration Office Near Me?

The nearest immigration office for in-person USCIS work is the field office that serves your ZIP code, found with the Field Office Locator. For fingerprints, it is the Application Support Center on your biometrics notice. Searching "immigration offices near me" on a map often shows lawyers or other agencies instead.

Office types you may find nearby

Many offices near you handle immigration, but each belongs to a different agency and opens its doors under a different rule.

If you cannot name the notice that sends you to an office, you probably should not go there yet.

Map searches and private offices

Maps label law firms, notaries and "immigration services" shops as immigration offices. They are not USCIS, and only an attorney or DOJ-accredited representative can give legal advice. Courts are a separate agency; see our immigration court case status guide.

Immigration Offices in Houston, Chicago and Atlanta

Large cities such as Houston, Chicago and Atlanta have USCIS field offices and asylum offices, plus nearby Application Support Centers. To get the current address, search your ZIP code in the Field Office Locator rather than copying one from an old article.

Immigration office in Houston, Texas

Searches for an immigration office in Houston usually come from people with an interview or biometrics notice. USCIS lists a Houston Asylum Office, and other interviews happen at the field office the locator shows.

Chicago and Atlanta immigration offices

The Chicago immigration office and Atlanta field office work the same way: the locator for field offices, the asylum office page for asylum interviews. Photos online may be old; use the address on your notice.

Can You Walk In to a USCIS Field Office?

No. USCIS says field offices do not allow walk-ins, and you must have an appointment to visit. Go only for a scheduled interview, oath ceremony or service appointment, and bring the notice. Security staff may turn away anyone who arrives without one.

What "appointment only" means

You need an interview notice, an oath ceremony notice or a confirmed service appointment, sent by mail or to your account. A question without an appointment will not get you seen.

How to request an appointment

Request an in-person appointment online at my.uscis.gov/en/appointment/v2 or call 800-375-5283. Explain why you need in-person help. The agent decides whether a visit is needed or the issue can be solved by phone or online.

What Should You Bring to a Field Office Appointment?

Bring the appointment or interview notice, a valid government photo ID and any documents the notice lists. For interviews, the notice is your checklist, because USCIS prints case-specific requirements on it. Arrive early enough to clear building security. Missing items can mean a rescheduled interview.

Core items for any visit

• The notice for this appointment (printed)
• A valid, unexpired photo ID
• Your green card, EAD or passport, if you have one
• Originals of documents named on the notice
• Copies of your receipt notices for the case

Security and timing

Federal buildings screen visitors, so plan for a security line. Check your notice for interpreter and accommodation rules. Our green card interview guide explains what happens in the room.

Application Support Centers (Biometrics)

Application Support Centers (ASCs) are USCIS sites that collect biometrics: fingerprints, photos and electronic signatures. They do not accept applications or answer case questions. USCIS schedules your ASC visit when your case needs it and sends the notice by mail or to your online account.

What ASCs do

ASC staff take fingerprints, a photo and your digital signature. The data goes to whichever office decides your case. Our biometrics appointment guide walks through the visit. Bring the appointment notice and a valid photo ID, as the notice instructs.

What ASCs cannot do

ASC staff cannot predict decisions, accept documents or fix notice errors; USCIS says ASCs offer no other case services. Ask through the Contact Center or your account. Staff there can only take your biometrics.

What Do You Bring to an ASC Biometrics Appointment?

Bring your I-797C appointment notice and a valid photo ID to the ASC. Go to the ASC printed on your notice at the time shown. A field office transfer does not change your biometrics location, according to USCIS. Bring every notice for linked cases.

ID and notice details

Bring every notice if you got more than one, for example for linked I-485 and I-765 cases. If your ID name differs from the notice, bring proof of the change, such as a marriage certificate.

Rescheduling an ASC visit

Reschedule biometrics online at least 12 hours before, with good cause, or call the Contact Center. USCIS asks you to give good cause, and it warns that you can switch ASCs only by rescheduling in advance; walk-ins at a different ASC are not processed.

What Happens If You Miss Biometrics?

Missing biometrics can lead to denial for abandonment. If you missed it, contact USCIS quickly through the Contact Center or your online account and explain why. Do not wait for a new notice to arrive on its own, because one may not come.

Abandonment risk in practice

A missed ASC visit stalls the case, because background checks need your biometrics. The longer you wait to explain, the higher the denial risk. Keep proof of any emergency, such as a hospital record.

Going to the wrong ASC

Visiting a different ASC is a common mistake after a move, and USCIS will not process that visit. Reschedule properly and update your address. If you moved far away, ask the Contact Center for an appointment at an ASC near your new home.

Is "INS" the Same as USCIS?

Not exactly. The Immigration and Naturalization Service (INS) no longer exists. Its benefit work, including the old service centers, moved to USCIS when the Department of Homeland Security was formed. People still say "INS agency" or "INS service center," but today's office is USCIS.

Where the INS names survive

Older center names explain today's prefixes: EAC (Eastern Adjudication Center), WAC (Western Adjudication Center), LIN (Lincoln Service Center) and SRC (Southern Regional Center). The same INS service center sites kept working under USCIS.

Agencies that replaced the INS

Benefit work went to USCIS, enforcement to ICE and border inspection to CBP, all in the Department of Homeland Security. Immigration courts belong to the Department of Justice, so a court hearing never runs through a service center.

What Is a "Document Service Center"?

USCIS does not use "document service center" as the name of any office type. People usually mean the place that produces green cards and work permits, or a lockbox. Neither is a public office. Card production status shows up in your case status, not through a visit.

Card production is not a place to visit

After approval, your status may read New Card Is Being Produced. That happens at a secure card production site with no pickups. Our new card is being produced page explains the step.

What Is USCIS Corbin, Kentucky?

Some sites link a USCIS facility in Corbin, Kentucky to card production. Corbin is not one of the five USCIS service centers, and we could not find an official USCIS page describing a public office there. Do not mail forms to Corbin or plan a visit.

Who Answers USCIS Phone Questions?

The USCIS Contact Center answers questions for all service centers, the NBC and field offices. Automated phone line: 24 hours a day (live agents Mon-Fri 8am-8pm ET). You can also use Emma, USCIS's online virtual assistant (English and Spanish), on uscis.gov. Service centers do not have their own public hotlines.

Contact Center numbers

These are the official lines for every office on this page, including the hours when a live agent can answer.

Have your receipt number ready before you dial.

How Do You Change Your Address for a Service Center Case?

Report the move to USCIS, not to the service center. Report a new address to USCIS within 10 days of moving (INA 265). Update your address online in your USCIS account (E-COA); a mailed AR-11 also counts. A post office forwarding order does not update your USCIS file.

Update every pending case

Enter every pending receipt number when you change your address online. Our uscis change of address guide explains E-COA, Form AR-11 and notices already in the mail. Missing one case leaves its notices going to the old address.

Why moving can change offices

A move can shift a field office case to the office serving your new ZIP code. It usually does not move a service center case, because centers are not tied to where you live.

What If a Service Center Sends You an RFE?

A Request for Evidence (RFE) from a service center means the officer needs more documents before deciding. Send your response to the address printed on the RFE, before its deadline. RFE deadline: up to 12 weeks (the exact date is on your RFE); no extensions. I-539 and I-601A RFEs allow only 30 days.

Answering a center RFE

Put the RFE cover page on top and answer every item. If it was mailed, If USCIS mailed the notice, add 3 days to the deadline. Our rfe meaning guide explains how to build a complete reply.

Upload or mail

Some RFEs allow an online upload; others need paper. Either way, the reply goes to the office that sent it, even if that differs from your receipt prefix. Follow the instructions on the RFE itself.

When Should You Escalate a Service Center Delay?

Escalate only when your case is past its case inquiry date in the processing times tool. You can submit an 'outside normal processing time' request only after your case inquiry date. After that, the CIS Ombudsman and your member of Congress are the next steps.

Find your case inquiry date

Case inquiry date: the earliest date USCIS will accept a question about your pending case; it can change. Use the receipt date on your notice and pick the office shown in the tool. If your case is not yet at that date, extra calls rarely help.

The Ombudsman and Congress

Use the Ombudsman only after contacting USCIS within 90 days and waiting at least 60 days. CIS Ombudsman: DHS Form 7001, Request for Case Assistance (online). Your member of Congress can ask USCIS about your case after you sign a privacy release. Our ombudsman and congressional inquiry guide compares both routes.

Service Center Errors: Typos and Lost Notices

If a service center made a typo on a notice or a notice never arrived, use e-Request. e-Request: report USCIS typos, missing notices or accommodation needs online. The steps below show what to have ready. Fix your address first if the notice was lost.

Using e-Request

Have your receipt number, address and the error details ready. e-Request routes the issue to the office handling your case. Keep the confirmation. If nothing changes after a reasonable wait, the Contact Center can follow up.

Can a USCIS Error Justify an Expedite Request?

Yes, sometimes. USCIS lists clear USCIS error among its expedite criteria when it causes urgent harm. An example is a wrong work permit that stops you from working. Our uscis expedite request guide explains when that applies and how to ask.

USCIS Office Decision Table: If X, Do Y

Most office questions have one right channel. Use this table to pick it: the Contact Center for case questions, a field office only with an appointment, the ASC only with a biometrics notice, and the form's filing page for any mailing address.

Pick the right office

Find the task in the left column, then follow the middle column and avoid the right one.

The pattern is clear: your notices and the filing pages decide where to go.

Common mix-ups

People confuse service centers with field offices, and field offices with ASCs; the second mix-up causes missed appointments. "Application Support Center" means biometrics only; "field office" means an interview or service visit.

How It All Fits Together: A Case's Path Through USCIS Offices

One case can touch several offices. A paper filing enters at a lockbox, goes to a service center or the NBC for review, sends you to an ASC for biometrics and, if an interview is needed, ends at a field office. Online filings skip the lockbox step.

A family green card example

A family-based Form I-485 often goes NBC, then ASC, then a field office interview and decision. Our form i-485 guide covers the application itself. An NBC receipt early on is normal for this path.

A naturalization example

A Form N-400 often gets front-end processing at the NBC, then an ASC visit for biometrics, then a field office interview and, if approved, an oath ceremony. Our citizenship application guide covers the form.

An employment petition example

An employer's Form I-129 petition usually stays at a service center start to finish, with no interview. Our h-1b visa guide explains that path. The worker may later need a consular visa appointment abroad.

Mistakes to Avoid With USCIS Offices

The costliest mistakes are mailing a form to the wrong address, walking in without an appointment, missing an ASC visit after a move and paying a website to "find" your office. Each is avoidable if you follow your notices and the official uscis.gov pages.

Address and appointment mistakes

• Using a filing address saved before October 2026
• Sending documents to a service center street address
• Showing up at a field office without a notice
• Going to an ASC other than the one on your notice
• Updating your address for one case but not the others

Paid "office finder" and scam warnings

USCIS office information and the locator are free on uscis.gov. Be wary of any site that charges for an appointment or a "service center contact" number.

Frequently Asked Questions

casestatuscompass.com is an independent publication and is not affiliated with USCIS or any government agency. This page is general information, not legal advice. For denials, court or asylum matters, consult an immigration attorney or a DOJ-accredited representative.