NumberResearchRecent prefix assignments
355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2009-09-10 | 865-304 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | KNOXVILLE | TN |
| 2009-09-09 | 325-269 | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | CLYDE | TX |
| 2009-09-09 | 336-528 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | WINSTN SAL | NC |
| 2009-09-09 | 480-369 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2009-09-09 | 480-822 | QWEST CORPORATION | 9636 | PHOENIX | AZ |
| 2009-09-09 | 505-274 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NM | 6573 | ALBUQURQUE | NM |
| 2009-09-09 | 520-308 | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TUCSON | AZ |
| 2009-09-09 | 520-310 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | TUCSON | AZ |
| 2009-09-09 | 571-318 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - VA | 6827 | WSNGTNZN19 | VA |
| 2009-09-09 | 574-316 | BANDWIDTH.COM CLEC, LLC - IN | 105F | PLYMOUTH | IN |
| 2009-09-09 | 616-258 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | GRAND RPDS | MI |
| 2009-09-09 | 623-258 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 6572 | PHOENIX | AZ |
| 2009-09-09 | 646-599 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | NWYRCYZN01 | NY |
| 2009-09-09 | 720-358 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | HUDSON | CO |
| 2009-09-09 | 803-521 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | COLUMBIA | SC |
| 2009-09-09 | 850-347 | PAETEC ITEL, LLC | 829J | MONTICELLO | FL |
| 2009-09-09 | 850-408 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | TALLAHASSE | FL |
| 2009-09-09 | 862-253 | ONVOY, LLC - NJ | 637C | ORANGE | NJ |
| 2009-09-09 | 910-729 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | FAYETTEVL | NC |
| 2009-09-09 | 980-295 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | SHELBY | NC |
| 2009-09-09 | 980-395 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | CHARLOTTE | NC |
| 2009-09-08 | 440-731 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH | 6025 | ELYRIA | OH |
| 2009-09-08 | 443-252 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | PERRYVILLE | MD |
| 2009-09-08 | 443-687 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD | 6395 | BALTIMORE | MD |
| 2009-09-08 | 720-396 | AT&T - LOCAL | 7421 | DENVER | CO |
| 2009-09-08 | 720-397 | AT&T - LOCAL | 7421 | DENVER | CO |
| 2009-09-04 | 208-994 | ONVOY, LLC - ID | 689F | BOISE | ID |
| 2009-09-04 | 234-564 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SALEM | OH |
| 2009-09-04 | 720-340 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO | 6567 | LONGMONT | CO |
| 2009-09-04 | 720-395 | AT&T - LOCAL | 7421 | DENVER | CO |
| 2009-09-04 | 774-320 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | ROCHESTER | MA |
| 2009-09-03 | 318-528 | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | ALEXANDRIA | LA |
| 2009-09-03 | 408-459 | ONVOY, LLC - CA | 649C | SNJS WEST | CA |
| 2009-09-03 | 671-979 | PTI PACIFICA INC. DBA IT&E - GU | 335E | AGANA | GU |
| 2009-09-03 | 951-286 | METROPCS NETWORKS, LLC | 899D | RIVERSIDE | CA |
| 2009-09-02 | 316-243 | ONVOY, LLC - KS | 205F | WICHITA | KS |
| 2009-09-02 | 347-856 | METROPCS, INC. | 5562 | NWYRCYZN07 | NY |
| 2009-09-02 | 347-858 | METROPCS, INC. | 5562 | NWYRCYZN11 | NY |
| 2009-09-02 | 412-416 | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | PTTSBGZON1 | PA |
| 2009-09-02 | 847-396 | ILLINOIS BELL TEL CO | 9329 | DUNDEE | IL |
| 2009-09-01 | 289-233 | TELUS Mobility | 8303 | Brampton | — |
| 2009-09-01 | 289-255 | TELUS Integrated Communications | 2782 | Ajax-Pickering | — |
| 2009-09-01 | 289-256 | TELUS Integrated Communications | 2782 | Woodbridge | — |
| 2009-09-01 | 774-295 | TC SYSTEMS, INC. | 7135 | BELLINGHAM | MA |
| 2009-09-01 | 952-500 | FRONTIER COMMUNICATIONS OF AMERICA, INC. - MN | 2474 | TWINCITIES | MN |
| 2009-08-31 | 989-273 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HIGGINS LK | MI |
| 2009-08-31 | 989-296 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PRESCOTT | MI |
| 2009-08-28 | 318-594 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | COLUMBIA | LA |
| 2009-08-28 | 347-520 | METROPCS, INC. | 5562 | NWYRCYZN03 | NY |
| 2009-08-28 | 503-894 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.