NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

371 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
8X8, INC. 38
ONVOY, LLC - CA 31
NEW CINGULAR WIRELESS PCS, LLC - IL 31
NEW CINGULAR WIRELESS PCS, LLC - DC 30
ONVOY, LLC - NJ 18
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
Download CSV ↓
Recent NPA-NXX prefix assignments
AssignedNPA-NXXAssigneeOCNRate centerState
2023-12-05 572-225 BANDWIDTH.COM CLEC, LLC - OK 119F NORMAN OK
2023-12-05 657-710 T-MOBILE USA, INC. 6529 GARDEN GRV CA
2023-12-05 661-997 NEW CINGULAR WIRELESS PCS, LLC 6010 MCFARLAND CA
2023-12-05 678-706 ONVOY SPECTRUM, LLC 624H ATLANTA SO GA
2023-12-05 689-899 ONVOY SPECTRUM, LLC 624H KENANSVL FL
2023-12-05 689-998 ONVOY SPECTRUM, LLC 624H REEDYCREEK FL
2023-12-05 762-762 ONVOY SPECTRUM, LLC 624H COLUMBUS GA
2023-12-05 765-773 ONVOY SPECTRUM, LLC 624H CARTHAGE IN
2023-12-05 765-879 ONVOY SPECTRUM, LLC 624H LAUREL IN
2023-12-05 765-968 ONVOY SPECTRUM, LLC 624H MOORELAND IN
2023-12-05 804-866 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 CHESTER VA
2023-12-05 805-820 ONVOY SPECTRUM, LLC 624H SATICOY CA
2023-12-05 818-278 ONVOY SPECTRUM, LLC 624H NO HOLLYWD CA
2023-12-05 820-502 ONVOY SPECTRUM, LLC 624H SIMIVALLEY CA
2023-12-05 825-526 Bell Mobility 6574 Edmonton —
2023-12-05 825-760 Bell Mobility 6574 Calgary —
2023-12-05 840-248 T-MOBILE USA, INC. 6529 FONTANA CA
2023-12-05 910-560 ONVOY SPECTRUM, LLC 624H FAYETTEVL NC
2023-12-05 948-216 NEW CINGULAR WIRELESS PCS, LLC - DC 4036 NWPTNWSZN3 VA
2023-12-05 951-713 NEW CINGULAR WIRELESS PCS, LLC 6010 MORENO CA
2023-12-05 971-476 T-MOBILE USA, INC. 6529 CLACKAMAS OR
2023-12-04 216-494 FIVE9, INC. 598J MONTRSE OH
2023-12-04 229-653 PINELAND COMMUNICATIONS, INC. - GA 458G PLAINS GA
2023-12-04 229-654 PINELAND COMMUNICATIONS, INC. - GA 458G LESLIE GA
2023-12-04 229-656 PINELAND COMMUNICATIONS, INC. - GA 458G LKBLACKSHE GA
2023-12-04 279-248 T-MOBILE USA, INC. 6529 SCRM MAIN CA
2023-12-04 313-607 NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DETROITZN5 MI
2023-12-04 406-955 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 6564 KALISPELL MT
2023-12-04 437-452 Bell Mobility 6574 Toronto —
2023-12-04 438-446 Bell Mobility 6574 Montreal —
2023-12-04 438-449 Bell Mobility 6574 Montreal —
2023-12-04 442-240 FIVE9, INC. 598J RAMONA CA
2023-12-04 657-709 T-MOBILE USA, INC. 6529 SANTA ANA CA
2023-12-04 681-504 TELEPORT COMMUNICATIONS AMERICA, LLC - WV 077G WINFIELD WV
2023-12-04 740-903 AERIAL COMMUNICATIONS, INC. 6701 ATHENS OH
2023-12-04 901-961 ONVOY SPECTRUM, LLC 624H MEMPHIS TN
2023-12-04 951-705 T-MOBILE USA, INC. 6529 MORENO CA
2023-12-04 951-706 T-MOBILE USA, INC. 6529 WOODCREST CA
2023-12-04 951-709 T-MOBILE USA, INC. 6529 MURRIETA CA
2023-12-04 971-472 FIVE9, INC. 598J PORTLAND OR
2023-12-04 971-474 T-MOBILE USA, INC. 6529 WOODBURN OR
2023-12-04 971-475 T-MOBILE USA, INC. 6529 SEASIDE OR
2023-12-01 229-651 POWERTEL ATLANTA LICENSES, INC. 7473 BAINBRIDGE GA
2023-12-01 307-428 T-MOBILE USA, INC. 6529 DOUGLAS WY
2023-12-01 367-406 Iristel Inc. 154E Quebec —
2023-12-01 367-407 Iristel Inc. 154E Quebec —
2023-12-01 367-408 Iristel Inc. 154E Quebec —
2023-12-01 385-561 FIVE9, INC. 598J OGDEN UT
2023-12-01 386-360 NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAKE CITY FL
2023-12-01 438-913 Iristel Inc. 154E Montreal —

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.