NumberResearchRecent prefix assignments
369 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2001-04-23 | 425-981 | TELEPORT COMMUNICATIONS AMERICA, LLC - WA | 7146 | RENTON | WA |
| 2001-04-23 | 484-576 | OMNIPOINT COMMUNICATIONS ENTERPRISES, LP | 6626 | PHPHSBZN31 | PA |
| 2001-04-23 | 510-746 | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | OKLD TRNID | CA |
| 2001-04-23 | 518-340 | CENTRAL VERMONT COMMUNICATIONS, INC. | 1941 | ALBANY | NY |
| 2001-04-23 | 570-400 | LIMITLESS MOBILE, LLC | 6921 | SHENANDOAH | PA |
| 2001-04-23 | 630-265 | AMERICAN MESSAGING SERVICES, LLC | 9748 | LA GRANGE | IL |
| 2001-04-23 | 630-298 | AMERICAN MESSAGING SERVICES, LLC | 9748 | LA GRANGE | IL |
| 2001-04-23 | 630-316 | AMERICAN MESSAGING SERVICES, LLC | 9748 | LA GRANGE | IL |
| 2001-04-23 | 641-351 | METROPCS, INC. | 5562 | MARSHALLTN | IA |
| 2001-04-23 | 646-271 | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN01 | NY |
| 2001-04-23 | 650-468 | T-MOBILE USA, INC. | 6529 | PALO ALTO | CA |
| 2001-04-23 | 708-521 | AMERICAN MESSAGING SERVICES, LLC | 9748 | LA GRANGE | IL |
| 2001-04-23 | 708-718 | AMERICAN MESSAGING SERVICES, LLC | 9748 | LA GRANGE | IL |
| 2001-04-23 | 714-310 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANAHEIM | CA |
| 2001-04-23 | 760-685 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISTA | CA |
| 2001-04-23 | 760-692 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7240 | OCSD CRLS | CA |
| 2001-04-23 | 760-709 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MAMMOTHLKS | CA |
| 2001-04-23 | 773-781 | AMERICAN MESSAGING SERVICES, LLC | 9748 | CHICGOZN01 | IL |
| 2001-04-23 | 773-845 | AMERICAN MESSAGING SERVICES, LLC | 9748 | CHICGOZN01 | IL |
| 2001-04-23 | 805-284 | T-MOBILE USA, INC. | 6529 | SANBARBARA | CA |
| 2001-04-23 | 812-216 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | 6725 | SEYMOUR | IN |
| 2001-04-23 | 847-206 | AMERICAN MESSAGING SERVICES, LLC | 9748 | NORTHBROOK | IL |
| 2001-04-23 | 847-389 | AMERICAN MESSAGING SERVICES, LLC | 9748 | NORTHBROOK | IL |
| 2001-04-23 | 847-547 | AMERICAN MESSAGING SERVICES, LLC | 9748 | NORTHBROOK | IL |
| 2001-04-23 | 847-799 | AMERICAN MESSAGING SERVICES, LLC | 9748 | NORTHBROOK | IL |
| 2001-04-23 | 857-212 | METROPCS, INC. | 5562 | DORCHESTER | MA |
| 2001-04-23 | 857-252 | PAETEC ITEL, LLC | 829J | QUINCY | MA |
| 2001-04-23 | 857-253 | PAETEC ITEL, LLC | 829J | CAMBRIDGE | MA |
| 2001-04-23 | 857-254 | PAETEC ITEL, LLC | 829J | BOSTON | MA |
| 2001-04-23 | 857-255 | PAETEC ITEL, LLC | 829J | NEWTON | MA |
| 2001-04-23 | 949-314 | SHELCOMM | 0051 | LAGUNA BCH | CA |
| 2001-04-23 | 951-551 | T-MOBILE USA, INC. | 6529 | TEMECULA | CA |
| 2001-04-23 | 951-768 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CORONA | CA |
| 2001-04-21 | 256-347 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CULLMAN | AL |
| 2001-04-21 | 256-371 | POWERTEL BIRMINGHAM LICENSES, INC. | 7475 | ANNISTON | AL |
| 2001-04-20 | 201-783 | MONMOUTH TELEPHONE AND TELEGRAPH, INC. - NJ | 3639 | RAMSEY | NJ |
| 2001-04-20 | 317-716 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | INDIANAPLS | IN |
| 2001-04-20 | 443-694 | METROPCS, INC. | 5562 | SEVERNA PK | MD |
| 2001-04-20 | 443-889 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | GLENBURNIE | MD |
| 2001-04-20 | 443-907 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | ELKTON | MD |
| 2001-04-20 | 443-910 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BEL AIR | MD |
| 2001-04-20 | 443-929 | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | PIKESVILLE | MD |
| 2001-04-20 | 443-967 | VERIZON MARYLAND, INC. | 9212 | NORTH EAST | MD |
| 2001-04-20 | 510-455 | T-MOBILE USA, INC. | 6529 | CROCKETT | CA |
| 2001-04-20 | 510-689 | METROPCS, INC. | 5562 | OKLD FRTVL | CA |
| 2001-04-20 | 510-904 | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | OKLD TRNID | CA |
| 2001-04-20 | 530-575 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRVY MAIN | CA |
| 2001-04-20 | 585-512 | TC SYSTEMS, INC. - NY | 7140 | ROCHESTER | NY |
| 2001-04-20 | 586-604 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | WARREN | MI |
| 2001-04-20 | 586-991 | MICHIGAN BELL TEL CO | 9323 | UTICA | MI |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.