Recent prefix assignments

358 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
2022-03-18	762-466	0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PENDERGRSS	GA
2022-03-18	762-753	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	GREENSBORO	GA
2022-03-18	912-676	0XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	ST MARYS	GA
2022-03-18	945-249	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FRISCO	TX
2022-03-18	945-250	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LEWISVILLE	TX
2022-03-18	947-258	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	CLARKSTON	MI
2022-03-18	949-773	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	NEWPORTBCH	CA
2022-03-18	980-421	0–9 XXXall 10 · 2 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	GASTONIA	NC
2022-03-18	986-860	0XXX1XXX2XXX3XXX8XXX9XXX · 3 holders which blocks →	COMMIO, LLC	939H	COERDALENE	ID
2022-03-17	216-484	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	TERRACE	OH
2022-03-17	234-687	0XXX1XXX2XXX3XXX4XXX7XXX9XXX · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SALINEVL	OH
2022-03-17	413-482	0–9 XXXall 10 · 5 holders which blocks →	FREEDOM RING COMMUNICATIONS, LLC	8468	SPRINGFLD	MA
2022-03-17	447-832	0XXX1XXX2XXX4XXX7XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	OAKWOOD	IL
2022-03-17	464-203	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	OAK FOR SO	IL
2022-03-17	479-487	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SPRINGDALE	AR
2022-03-17	567-379	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LIMA	OH
2022-03-17	580-880	0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	ALTUS	OK
2022-03-17	580-990	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	DUNCAN	OK
2022-03-17	873-640	not yet reported which blocks →	TELUS Quebec	2243	Rock Island	—
2022-03-17	917-800	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NWYRCYZN15	NY
2022-03-17	959-559	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MIDDLETOWN	CT
2022-03-17	959-595	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SOUTHINGTN	CT
2022-03-16	228-286	0–9 XXXall 10 · 2 holders which blocks →	PAETEC ITEL, LLC	829J	BILOXI	MS
2022-03-16	346-552	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	ALVIN	TX
2022-03-16	463-274	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	INDIANAPLS	IN
2022-03-16	564-653	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	VANCOUVER	WA
2022-03-16	620-929	0XXX1XXX2XXX3XXX4XXX8XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SUBLETTE	KS
2022-03-16	712-878	7XXX8XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	IRETON	IA
2022-03-16	712-996	0XXX6XXX9XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MANSON	IA
2022-03-16	775-494	0XXX1XXX6XXX8XXX9XXX · 5 holders which blocks →	AT&T CORP. - NV	7692	EMPIRE	NV
2022-03-16	856-838	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PITMAN	NJ
2022-03-16	948-468	0XXX1XXX4XXX7XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	CAPECHARLS	VA
2022-03-16	948-946	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	TOANO	VA
2022-03-16	970-525	0XXX2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PAONIA	CO
2022-03-16	989-994	0XXX1XXX2XXX3XXX4XXX7XXX8XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BEAVERTON	MI
2022-03-15	223-287	0–9 XXXwhole prefix which blocks →	LEVEL 3 COMMUNICATIONS, LLC - PA	4007	LANDISVL	PA
2022-03-15	236-234	not yet reported which blocks →	Videotron Ltd.	787G	Vancouver	—
2022-03-15	316-399	0–9 XXXall 10 · 5 holders which blocks →	PAETEC ITEL, LLC	829J	WICHITA	KS
2022-03-15	319-995	1XXX5XXX7XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	WINFIELD	IA
2022-03-15	414-497	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	MILWAUKZN5	WI
2022-03-15	464-205	0–9 XXXwhole prefix which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IL	6115	PALOS PARK	IL
2022-03-15	479-588	0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 7 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MENA	AR
2022-03-15	539-426	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PRYOR	OK
2022-03-15	564-669	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	OLYMPIA	WA
2022-03-15	657-575	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	ANAHEIM	CA
2022-03-15	720-698	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	LONGMONT	CO
2022-03-15	726-224	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	SANANTONIO	TX
2022-03-15	775-558	0–9 XXXall 10 · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	CRYSTALBAY	NV
2022-03-15	810-737	3XXX which blocks →	TON80 COMMUNICATIONS, LLC	516J	HARTLAND	MI
2022-03-15	831-260	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	SOLEDAD	CA

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.