Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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 31

ONVOY, LLC - CA 27

NEW CINGULAR WIRELESS PCS, LLC - IL 27

ONVOY, LLC - NJ 15

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
2005-05-17	902-968	not yet reported which blocks →	Aliant Telecom (NS)	8089	Antigonish	—
2005-05-16	613-461	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Almonte	—
2005-05-16	613-469	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Osgoode	—
2005-05-16	613-470	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Carp	—
2005-05-16	613-491	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Manotick	—
2005-05-16	613-493	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	North Gower	—
2005-05-16	661-431	0–9 XXXall 10 · 4 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	BKFD MAIN	CA
2005-05-14	757-663	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NRFOLKZON2	VA
2005-05-13	613-435	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Kanata-Stittsville	—
2005-05-13	613-440	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Jockvale	—
2005-05-13	613-444	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Richmond	—
2005-05-13	613-492	not yet reported which blocks →	Rogers Communications Canada Inc. (Cable)	743B	Carleton Place	—
2005-05-13	641-715	0–9 XXXall 10 · 7 holders which blocks →	ONVOY, LLC - IA	221F	CHARLES CY	IA
2005-05-13	716-258	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	MACHIAS	NY
2005-05-13	850-776	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	PENSACOLA	FL
2005-05-13	909-520	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	S BERNDINO	CA
2005-05-12	252-777	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC	7835	NEWPORT	NC
2005-05-12	304-709	0–9 XXXall 10 · 5 holders which blocks →	CITYNET WEST VIRGINIA, LLC - WV	545B	CLARKSBURG	WV
2005-05-12	304-919	0–9 XXXall 10 · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	WEIRTON	WV
2005-05-12	304-982	0–9 XXXall 10 · 6 holders which blocks →	CITYNET WEST VIRGINIA, LLC - WV	545B	CHRLSTNZN1	WV
2005-05-12	405-519	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OK	5813	OKLA CITY	OK
2005-05-12	646-651	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	NWYRCYZN01	NY
2005-05-12	706-900	not yet reported which blocks →	ETC COMMUNICATIONS, L.L.C. - GA	205D	LAKEWOOD	GA
2005-05-12	724-540	0–9 XXXall 10 · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	FREEPORT	PA
2005-05-12	724-687	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	MARS	PA
2005-05-12	724-901	0–9 XXXall 10 · 9 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - PA	4007	NEWWLMNGTN	PA
2005-05-12	724-903	0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	COOPERSTWN	PA
2005-05-12	954-734	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	FTLAUDERDL	FL
2005-05-11	281-757	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	HOUSTON	TX
2005-05-11	321-704	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	COCOA	FL
2005-05-11	336-799	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC	7835	RANDLEMAN	NC
2005-05-11	480-353	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - AZ	7217	PHOENIX	AZ
2005-05-11	636-422	0–9 XXXall 10 · 8 holders which blocks →	SOUTHWESTERN BELL	9533	POND	MO
2005-05-10	218-656	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	NISSWA	MN
2005-05-10	239-961	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	NAPLES	FL
2005-05-10	310-703	0–9 XXXall 10 · 7 holders which blocks →	T-MOBILE USA, INC.	6529	INGLEWOOD	CA
2005-05-10	321-745	0–9 XXXall 10 · 6 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	COCOA	FL
2005-05-10	401-441	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PROVIDENCE	RI
2005-05-10	407-967	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	ORLANDO	FL
2005-05-10	410-577	0–9 XXXwhole prefix which blocks →	VERIZON MARYLAND, INC.	9212	PIKESVILLE	MD
2005-05-10	417-606	0XXX1XXX2XXX3XXX5XXX · 3 holders which blocks →	UNITED STATES CELLULAR - MO	6275	MT VERNON	MO
2005-05-10	813-770	0–9 XXXall 10 · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TAMPA	FL
2005-05-10	940-443	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MYRA	TX
2005-05-10	954-643	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	FTLAUDERDL	FL
2005-05-09	210-745	0–9 XXXall 10 · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	SANANTONIO	TX
2005-05-09	252-405	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC	7835	WARRENTON	NC
2005-05-09	252-515	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC	7835	MOREHEADCY	NC
2005-05-09	254-652	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	WACO	TX
2005-05-09	361-484	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	VICTORIA	TX
2005-05-09	416-273	not yet reported which blocks →	TELUS Integrated Communications	2782	Toronto	—

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.