Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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 19

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
2016-04-06	929-309	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN15	NY
2016-04-05	240-810	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSNGTNZN10	MD
2016-04-05	636-310	0XXX1XXX2XXX3XXX8XXX9XXX · 4 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	HILLSBORO	MO
2016-04-05	825-617	not yet reported which blocks →	Distributel	081E	Blackfalds	—
2016-04-05	825-618	not yet reported which blocks →	Distributel	081E	Bowden	—
2016-04-05	825-619	not yet reported which blocks →	Distributel	081E	Byemoor	—
2016-04-05	825-620	not yet reported which blocks →	Distributel	081E	Carbon	—
2016-04-05	825-621	not yet reported which blocks →	Distributel	081E	Caroline	—
2016-04-05	825-622	not yet reported which blocks →	Distributel	081E	Castor	—
2016-04-05	825-623	not yet reported which blocks →	Distributel	081E	Cereal	—
2016-04-05	825-624	not yet reported which blocks →	Distributel	081E	Clive	—
2016-04-05	825-625	not yet reported which blocks →	Distributel	081E	Consort	—
2016-04-05	825-626	not yet reported which blocks →	Distributel	081E	Coronation	—
2016-04-05	825-627	not yet reported which blocks →	Distributel	081E	Craigmyle	—
2016-04-05	825-628	not yet reported which blocks →	Distributel	081E	Delburne	—
2016-04-05	825-629	not yet reported which blocks →	Distributel	081E	Delia	—
2016-04-05	825-630	not yet reported which blocks →	Distributel	081E	Didsbury	—
2016-04-05	825-631	not yet reported which blocks →	Distributel	081E	Donalda	—
2016-04-05	825-632	not yet reported which blocks →	Distributel	081E	Drumheller	—
2016-04-05	825-633	not yet reported which blocks →	Distributel	081E	East Coulee	—
2016-04-05	825-634	not yet reported which blocks →	Distributel	081E	Eckville	—
2016-04-05	825-635	not yet reported which blocks →	Distributel	081E	Elnora	—
2016-04-05	980-257	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	CHARLOTTE	NC
2016-04-04	226-285	not yet reported which blocks →	TELUS Integrated Communications	2782	Walkerton	—
2016-04-04	267-366	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	PHLDLPHZN2	PA
2016-04-04	484-591	0–9 XXXall 10 · 7 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	EASTON	PA
2016-04-04	518-619	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	SLIC NETWORK SOLUTIONS, INC. - NY	193C	SARANAC LK	NY
2016-04-04	571-320	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	TRIANGLE	VA
2016-04-04	825-612	not yet reported which blocks →	Distributel	081E	Acadia Valley	—
2016-04-04	825-613	not yet reported which blocks →	Distributel	081E	Alix	—
2016-04-04	825-614	not yet reported which blocks →	Distributel	081E	Altario	—
2016-04-04	825-615	not yet reported which blocks →	Distributel	081E	Bentley	—
2016-04-04	825-616	not yet reported which blocks →	Distributel	081E	Big Valley	—
2016-04-01	206-606	0–9 XXXall 10 · 3 holders which blocks →	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM	7173	SEATTLE	WA
2016-04-01	253-240	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	TACOMA	WA
2016-04-01	385-251	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	KAYSVILLE	UT
2016-04-01	510-707	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	OKLD TRNID	CA
2016-04-01	551-207	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	RAMSEY	NJ
2016-04-01	551-209	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	WYCKOFF	NJ
2016-04-01	559-601	0–9 XXXall 10 · 7 holders which blocks →	T-MOBILE USA, INC.	6529	CARUTHERS	CA
2016-04-01	628-202	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	BELVEDERE	CA
2016-04-01	646-803	0–9 XXXwhole prefix which blocks →	TC SYSTEMS, INC. - NY	7140	NWYRCYZN01	NY
2016-04-01	669-204	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	SNJS WEST	CA
2016-04-01	929-219	0–9 XXXall 10 · 7 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN04	NY
2016-04-01	929-304	0–9 XXXwhole prefix which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN03	NY
2016-04-01	929-305	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN06	NY
2016-04-01	949-506	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	CAPITRNVLY	CA
2016-04-01	973-938	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	PATERSON	NJ
2016-03-31	226-245	not yet reported which blocks →	TELUS Integrated Communications	2782	Meaford	—
2016-03-31	226-279	not yet reported which blocks →	TELUS Integrated Communications	2782	Owen Sound	—

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.