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
2021-04-18	925-966	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	ANTIOCH	CA
2021-04-18	959-239	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	OLD SAYBRK	CT
2021-04-17	218-594	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TELNYX LLC	073H	SILVER BAY	MN
2021-04-17	256-879	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TELNYX LLC	073H	SYLACAUGA	AL
2021-04-17	318-763	0–9 XXXwhole prefix which blocks →	ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC	6916	OAKDALE	LA
2021-04-17	334-783	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	DOTHAN	AL
2021-04-17	413-399	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	AMHERST	MA
2021-04-17	447-227	0XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC	224C	PAXTON	IL
2021-04-17	447-237	0XXX4XXX · 2 holders which blocks →	ONVOY, LLC	224C	PENFIELD	IL
2021-04-17	447-244	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 7 holders which blocks →	ONVOY, LLC	224C	GEORGETOWN	IL
2021-04-17	447-277	0XXX1XXX2XXX4XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC	224C	PHILO	IL
2021-04-17	447-347	0XXX1XXX3XXX4XXX7XXX · 3 holders which blocks →	ONVOY, LLC	224C	CHENEYVL	IL
2021-04-17	447-647	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC	224C	MAHOMET	IL
2021-04-17	447-674	0XXX7XXX · 2 holders which blocks →	ONVOY, LLC	224C	IVESDALE	IL
2021-04-17	447-737	0XXX1XXX3XXX4XXX7XXX · 4 holders which blocks →	ONVOY, LLC	224C	EAST LYNN	IL
2021-04-17	447-744	0XXX1XXX4XXX7XXX · 4 holders which blocks →	ONVOY, LLC	224C	BROADLANDS	IL
2021-04-17	447-774	0XXX1XXX2XXX4XXX7XXX · 3 holders which blocks →	ONVOY, LLC	224C	HOMER	IL
2021-04-17	479-671	0–9 XXXwhole prefix which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	BENTONVL	AR
2021-04-17	667-316	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	TELNYX LLC	073H	OXFORD	MD
2021-04-17	725-910	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - NV	029F	LAS VEGAS	NV
2021-04-17	775-710	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NV	029F	RENO	NV
2021-04-17	839-203	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	BATESBURG	SC
2021-04-17	854-219	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	MONCKS COR	SC
2021-04-16	220-209	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	STEUBENVL	OH
2021-04-16	234-465	0XXX1XXX5XXX8XXX · 4 holders which blocks →	FRACTEL, LLC	965H	APPLECREEK	OH
2021-04-16	309-881	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	INDUSTRY	IL
2021-04-16	316-389	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	EL DORADO	KS
2021-04-16	434-310	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - VA	138E	CHARLOTSVL	VA
2021-04-16	445-205	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	DOYLESTOWN	PA
2021-04-16	445-448	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	DOYLESTOWN	PA
2021-04-16	447-344	0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 5 holders which blocks →	ONVOY, LLC	224C	MTSTERLING	IL
2021-04-16	447-574	0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks →	ONVOY, LLC	224C	RUSHVILLE	IL
2021-04-16	447-747	4XXX7XXX8XXX which blocks →	ONVOY, LLC	224C	BARRY	IL
2021-04-16	458-910	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - OR	750E	EUGENE	OR
2021-04-16	479-910	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AR	348F	FORT SMITH	AR
2021-04-16	484-717	0XXX1XXX4XXX5XXX7XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	HONEYBROOK	PA
2021-04-16	484-847	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	KEMBLESVL	PA
2021-04-16	501-910	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - AR	348F	LITTLEROCK	AR
2021-04-16	509-712	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	T-MOBILE USA, INC.	6529	SUNNYSIDE	WA
2021-04-16	531-275	0–9 XXXall 10 · 5 holders which blocks →	UNITED STATES CELLULAR - NE	6263	HOWELLS	NE
2021-04-16	539-910	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - OK	409F	TULSA	OK
2021-04-16	559-966	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 8 holders which blocks →	FRACTEL, LLC	965H	SPRINGVL	CA
2021-04-16	567-799	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	DUNKIRK	OH
2021-04-16	572-910	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - OK	409F	OKLA CITY	OK
2021-04-16	605-910	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - SD	162G	SIOUX FLS	SD
2021-04-16	662-868	0XXX2XXX7XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MTPLEASANT	MS
2021-04-16	719-669	0XXX1XXX2XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	CALHAN	CO
2021-04-16	726-500	0–9 XXXall 10 · 2 holders which blocks →	FRACTEL, LLC	965H	SANANTONIO	TX
2021-04-16	816-422	0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 6 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	PLATTECITY	MO
2021-04-16	830-316	1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	AT&T - LOCAL	7421	MARION	TX

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.