Recent prefix assignments

341 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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

The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.

Most active assignees, last 30 days

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

ONVOY, LLC - CA 21

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

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2014-10-31	587-762	not yet reported which blocks →	Distributel	081E	Milk River	—
2014-10-31	639-275	not yet reported which blocks →	SaskTel Mobility	9868	Lestock	—
2014-10-31	639-328	not yet reported which blocks →	SaskTel Mobility	9868	Kelvington	—
2014-10-31	646-883	0–9 XXXall 10 · 2 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	NWYRCYZN01	NY
2014-10-31	719-470	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PUEBLO	CO
2014-10-31	786-667	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	NORTH DADE	FL
2014-10-31	786-716	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2014-10-31	902-966	not yet reported which blocks →	Comwave Networks	160G	Yarmouth	—
2014-10-31	902-967	not yet reported which blocks →	Comwave Networks	160G	New Glasgow	—
2014-10-31	954-371	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - FL	937C	FTLAUDERDL	FL
2014-10-31	979-267	0–9 XXXall 10 · 6 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	ANGLETON	TX
2014-10-30	323-886	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	LSAN DA 06	CA
2014-10-30	415-855	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	SAUSALITO	CA
2014-10-30	504-509	0–9 XXXall 10 · 4 holders which blocks →	VOICESTREAM GSM I, LLC	150C	NEWORLEANS	LA
2014-10-30	509-316	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - WA	006F	PASCO	WA
2014-10-30	520-276	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - AZ	587F	TUCSON	AZ
2014-10-30	559-785	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	FRESNO	CA
2014-10-30	619-597	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	LA MESA	CA
2014-10-30	681-256	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - WV	080F	WEBSTERSPG	WV
2014-10-30	681-303	0XXX3XXX4XXX · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - WV	080F	RUPERT	WV
2014-10-30	719-301	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	COLORDOSPG	CO
2014-10-30	720-507	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	DENVER	CO
2014-10-30	747-235	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	NORTHRIDGE	CA
2014-10-30	832-915	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	APOLLO	TX
2014-10-30	845-552	0XXX1XXX2XXX4XXX6XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC- NY	384C	MILTON	NY
2014-10-30	845-668	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC- NY	384C	NEW PALTZ	NY
2014-10-30	867-465	not yet reported which blocks →	Iristel Inc.	154E	Whitehorse	—
2014-10-30	867-632	not yet reported which blocks →	Iristel Inc.	154E	Whitehorse	—
2014-10-30	867-675	not yet reported which blocks →	Iristel Inc.	154E	Yellowknife	—
2014-10-30	867-731	not yet reported which blocks →	Iristel Inc.	154E	Behchoko	—
2014-10-30	867-768	not yet reported which blocks →	Iristel Inc.	154E	Inuvik	—
2014-10-30	867-783	not yet reported which blocks →	Iristel Inc.	154E	Yellowknife	—
2014-10-30	867-794	not yet reported which blocks →	Iristel Inc.	154E	Iqaluit	—
2014-10-30	867-992	not yet reported which blocks →	Iristel Inc.	154E	Dawson City	—
2014-10-30	916-573	0–9 XXXall 10 · 2 holders which blocks →	COMCAST PHONE OF CALIFORNIA, LLC	394L	SCRM MAIN	CA
2014-10-29	210-709	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SANANTONIO	TX
2014-10-29	727-503	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	CLEARWATER	FL
2014-10-29	832-710	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 OF TELECOM OF TEXAS, LLC - TX	7074	HOUSTON	TX
2014-10-29	832-806	0–9 XXXall 10 · 2 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2014-10-28	202-394	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	WSHNGTNZN1	DC
2014-10-28	216-415	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	CLEVELAND	OH
2014-10-28	240-517	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD	6395	LAUREL238	MD
2014-10-28	484-795	0–9 XXXall 10 · 8 holders which blocks →	ONVOY, LLC - PA	547E	ALLENTOWN	PA
2014-10-28	551-204	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	FAIR LAWN	NJ
2014-10-28	639-236	not yet reported which blocks →	SaskTel Mobility	9868	Buffalo Narrows	—
2014-10-28	639-237	not yet reported which blocks →	SaskTel Mobility	9868	Goodsoil	—
2014-10-28	639-343	not yet reported which blocks →	SaskTel Mobility	9868	Paradise Hill	—
2014-10-28	639-548	not yet reported which blocks →	SaskTel Mobility	9868	Hafford	—
2014-10-28	639-653	not yet reported which blocks →	SaskTel Mobility	9868	Prudhomme	—
2014-10-28	639-821	not yet reported which blocks →	SaskTel Mobility	9868	La Loche	—

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.