NumberResearchRecent prefix assignments
366 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
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 |
|---|---|---|---|---|---|
| 2006-08-21 | 607-504 | TWC IP ENABLED SERVICES, LLC | 793K | ADDISON | NY |
| 2006-08-21 | 607-610 | TWC IP ENABLED SERVICES, LLC | 793K | UNADILLA | NY |
| 2006-08-21 | 631-320 | CSC VOICE, LLC | 612K | SELDEN | NY |
| 2006-08-21 | 631-509 | CSC VOICE, LLC | 612K | PTJEFFERSN | NY |
| 2006-08-21 | 631-617 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | BRENTWOOD | NY |
| 2006-08-21 | 817-851 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-08-21 | 817-879 | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | GLENDALE | TX |
| 2006-08-21 | 951-570 | T-MOBILE USA, INC. | 6529 | PERRIS | CA |
| 2006-08-18 | 207-687 | CRC COMMUNICATIONS OF MAINE, INC. - ME | 1255 | WISCASSET | ME |
| 2006-08-18 | 207-716 | CRC COMMUNICATIONS OF MAINE, INC. - ME | 1255 | OAKLAND | ME |
| 2006-08-18 | 207-790 | CRC COMMUNICATIONS OF MAINE, INC. - ME | 1255 | WALDOBORO | ME |
| 2006-08-18 | 207-803 | CRC COMMUNICATIONS OF MAINE, INC. - ME | 1255 | BRIDGTON | ME |
| 2006-08-18 | 218-987 | PAUL BUNYAN RURAL TELEPHONE COOP. | 4814 | CASS LAKE | MN |
| 2006-08-18 | 281-608 | METROPCS, INC. | 5562 | HUMBLE | TX |
| 2006-08-18 | 289-466 | ISP Telecom Inc. | 4727 | Aurora | — |
| 2006-08-18 | 289-467 | ISP Telecom Inc. | 4727 | King City | — |
| 2006-08-18 | 289-468 | ISP Telecom Inc. | 4727 | Maple | — |
| 2006-08-18 | 289-469 | ISP Telecom Inc. | 4727 | Markham | — |
| 2006-08-18 | 289-470 | ISP Telecom Inc. | 4727 | Newmarket | — |
| 2006-08-18 | 289-471 | ISP Telecom Inc. | 4727 | Oak Ridges | — |
| 2006-08-18 | 289-472 | ISP Telecom Inc. | 4727 | Thornhill | — |
| 2006-08-18 | 289-473 | ISP Telecom Inc. | 4727 | Unionville | — |
| 2006-08-18 | 289-474 | ISP Telecom Inc. | 4727 | Woodbridge | — |
| 2006-08-18 | 318-771 | ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC | 6916 | SHREVEPORT | LA |
| 2006-08-18 | 418-313 | TELUS Mobility | 8303 | Saint-Georges-de-Beauce | — |
| 2006-08-18 | 418-326 | TELUS Mobility | 8303 | Donnacona | — |
| 2006-08-18 | 418-858 | TELUS Mobility | 8303 | Saint-Henri-de-Levis | — |
| 2006-08-18 | 806-360 | W T SERVICES, INC. | 7809 | HEREFORD | TX |
| 2006-08-18 | 956-827 | STPCS JOINT VENTURE, LLC | 4290 | MCALLEN | TX |
| 2006-08-17 | 289-427 | ISP Telecom Inc. | 4727 | Burlington | — |
| 2006-08-17 | 289-428 | ISP Telecom Inc. | 4727 | Georgetown | — |
| 2006-08-17 | 289-429 | ISP Telecom Inc. | 4727 | Milton | — |
| 2006-08-17 | 289-430 | ISP Telecom Inc. | 4727 | Oakville | — |
| 2006-08-17 | 289-431 | ISP Telecom Inc. | 4727 | Waterdown | — |
| 2006-08-17 | 289-445 | ISP Telecom Inc. | 4727 | Ancaster | — |
| 2006-08-17 | 289-446 | ISP Telecom Inc. | 4727 | Dundas | — |
| 2006-08-17 | 289-447 | ISP Telecom Inc. | 4727 | Grimsby | — |
| 2006-08-17 | 289-448 | ISP Telecom Inc. | 4727 | Stoney Creek | — |
| 2006-08-17 | 289-475 | ISP Telecom Inc. | 4727 | Richmond Hill | — |
| 2006-08-17 | 323-787 | METROPCS NETWORKS, LLC | 899D | MONTEBELLO | CA |
| 2006-08-17 | 418-507 | TELUS Mobility | 8303 | Saint-Tite | — |
| 2006-08-17 | 503-867 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 5820 | PORTLAND | OR |
| 2006-08-17 | 819-341 | TELUS Mobility | 8303 | St-Jovite | — |
| 2006-08-17 | 904-638 | ONVOY, LLC - FL | 937C | JACKSONVL | FL |
| 2006-08-16 | 229-375 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA | 6540 | VALDOSTA | GA |
| 2006-08-16 | 269-262 | COMCAST IP PHONE, LLC | 318J | NILES | MI |
| 2006-08-16 | 301-363 | LEVEL 3 COMMUNICATIONS, LLC - MD | 6119 | DAMASCS240 | MD |
| 2006-08-16 | 517-977 | COMCAST IP PHONE, LLC | 318J | LANSING | MI |
| 2006-08-16 | 570-541 | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MIDDLEBURG | PA |
| 2006-08-16 | 615-971 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN | 6673 | MURFREESBO | TN |
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.