Where You File Your I-129F Depends on Where You Live
The I-129F Petition for Alien Fiancé(e) isn't sent to a courthouse or a service center — it's mailed (or, for eligible filers, submitted online) to one of two USCIS "lockbox" facilities. Which one you use is determined entirely by the petitioner's state or territory of residence. Filing at the wrong lockbox can delay your case, so it's worth confirming before you send anything.
What a USCIS Lockbox Actually Does
A lockbox facility isn't where your petition gets reviewed. It's an intake and processing hub: lockbox staff receive your package, deposit your filing fee, issue your receipt notice, and enter your case into the USCIS system. Once that's done, your I-129F is forwarded to the USCIS service center that actually adjudicates fiancé visa petitions — the California Service Center. The lockbox is purely about where the paperwork and fee first land.
States and Territories That File With the Phoenix Lockbox
If the petitioner lives in one of the following states or territories, the I-129F is generally filed with the USCIS Phoenix Lockbox:
- Alaska
- Arizona
- California
- Guam
- Hawaii
- Nevada
- Northern Mariana Islands
- Oregon
- Washington
States and Territories That File With the Dallas Lockbox
If the petitioner lives anywhere else in the United States — including Arkansas — or is filing from outside the United States, the I-129F is generally routed to the USCIS Dallas Lockbox instead. This covers the large majority of states: everything not listed above, from Texas and Florida to New York and, yes, Arkansas.
Example: Filing From Arkansas
A petitioner who lives in Arkansas is not in the Phoenix Lockbox list above, so their I-129F goes to the Dallas Lockbox. The petition then moves on to the California Service Center for adjudication regardless of which lockbox received it — the lockbox assignment only affects where your initial paperwork and fee are processed, not which office ultimately decides your case.
Always Confirm the Current Mailing Address Before You File
USCIS updates lockbox mailing addresses and eligibility rules without much notice, and filing at a stale address can bounce your package back or delay your receipt notice. Before you mail anything, check the "Where to File" section of the current I-129F instructions on uscis.gov for the exact street address tied to your state. If you're unsure whether you qualify to file your I-129F online through a myUSCIS account instead of by mail, that eligibility also changes over time — check your account or the current form instructions directly rather than relying on older guidance.
What Happens After the Lockbox Receives Your Petition
Once your fee is processed and your case is entered into the system, you'll receive a receipt notice (Form I-797C) with a receipt number you can use to track your case online. From there, your I-129F is transferred to the California Service Center for review. For a full walkthrough of that journey — from lockbox to service center to the National Visa Center — see our guide to how I-129F petitions move through the USCIS system.
Already Approved?
If your I-129F has already been approved, the lockbox and service center steps are behind you. Find out what comes next — from the National Visa Center to the visa interview — in our guide to what happens after I-129F approval.
Have Questions?
For more information about immigration processes and frequently asked questions, visit our FAQ page.