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
2022-03-11	910-403	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	LILLINGTON	NC
2022-03-11	916-940	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	SCRM NORTH	CA
2022-03-10	209-767	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	ATWATER	CA
2022-03-10	209-776	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	JACKSON	CA
2022-03-10	213-757	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7139	LSAN DA 01	CA
2022-03-10	223-275	0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - PA	002F	WRIGHTSVL	PA
2022-03-10	231-391	0XXX7XXX8XXX9XXX · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MI	991E	WALLOON LK	MI
2022-03-10	313-900	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	DETROITZN5	MI
2022-03-10	314-617	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	ST LOUIS	MO
2022-03-10	314-988	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	OAKVILLE	MO
2022-03-10	319-733	0XXX1XXX3XXX7XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	FARMINGTON	IA
2022-03-10	319-997	1XXX7XXX9XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	NEW LONDON	IA
2022-03-10	368-998	not yet reported which blocks →	TELUS Mobility	8301	Banff	—
2022-03-10	368-999	not yet reported which blocks →	TELUS Mobility	8301	Calgary	—
2022-03-10	417-287	0XXX1XXX2XXX7XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	MT VIEW	MO
2022-03-10	470-941	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - GA	8392	GAINESVL	GA
2022-03-10	470-943	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - GA	983E	CARROLLTON	GA
2022-03-10	505-464	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	ALBUQURQUE	NM
2022-03-10	505-887	0–9 XXXall 10 · 7 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	GRANTS	NM
2022-03-10	520-634	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	CASAGRANDE	AZ
2022-03-10	562-848	0–9 XXXall 10 · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	LA HABRA	CA
2022-03-10	605-909	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	HILL CITY	SD
2022-03-10	606-221	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY	6500	HUSTONVL	KY
2022-03-10	641-272	2XXX7XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BRIDGEWTR	IA
2022-03-10	719-699	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SALIDA	CO
2022-03-10	734-460	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	WAYNE	MI
2022-03-10	734-653	0XXX1XXX3XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MILAN	MI
2022-03-10	762-683	0XXX1XXX3XXX7XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	HARTWELL	GA
2022-03-10	763-349	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2022-03-10	802-646	0XXX1XXX4XXX6XXX7XXX9XXX · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	WINDSOR	VT
2022-03-10	802-663	0XXX1XXX3XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	VERGENNES	VT
2022-03-10	804-996	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	COLONILBCH	VA
2022-03-10	814-219	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	METROPCS, INC.	5562	MEADVILLE	PA
2022-03-10	828-727	7XXX9XXX · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MAIDEN	NC
2022-03-10	854-773	0–9 XXXall 10 · 2 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	HILTONHEAD	SC
2022-03-10	873-941	not yet reported which blocks →	TELUS Quebec	2243	Bishopton	—
2022-03-10	873-943	not yet reported which blocks →	TELUS Quebec	2243	Bury	—
2022-03-10	873-944	not yet reported which blocks →	TELUS Quebec	2243	Chartierville	—
2022-03-10	904-795	0–9 XXXall 10 · 5 holders which blocks →	COMMIO, LLC	939H	ORANGEPARK	FL
2022-03-10	912-668	0XXX1XXX2XXX3XXX6XXX8XXX9XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MIDWAY	GA
2022-03-10	934-229	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	BRENTWOOD	NY
2022-03-10	941-290	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BRADENTON	FL
2022-03-10	970-979	0XXX1XXX2XXX7XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	EDWARDS	CO
2022-03-10	970-994	0XXX1XXX4XXX5XXX8XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	OLATHE	CO
2022-03-10	985-353	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - LA	6505	MANDEVILLE	LA
2022-03-09	218-676	0XXX3XXX6XXX7XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BUHL	MN
2022-03-09	218-887	1XXX2XXX3XXX7XXX8XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	AITKIN	MN
2022-03-09	223-727	0XXX2XXX5XXX6XXX7XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	TOWER CITY	PA
2022-03-09	229-763	0XXX1XXX2XXX3XXX4XXX5XXX8XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	CORDELE	GA
2022-03-09	251-383	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AL	604E	FAIRHOPE	AL

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.