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
2013-03-25	707-306	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	ANNAPOLIS	CA
2013-03-25	760-706	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	WRWD PHLN	CA
2013-03-25	848-217	0–9 XXXall 10 · 9 holders which blocks →	PEERLESS NETWORK OF NEW JERSEY, LLC - NJ	264F	ASBURYPARK	NJ
2013-03-25	909-324	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	RUNNINGSPG	CA
2013-03-25	914-349	0–9 XXXall 10 · 3 holders which blocks →	CSC VOICE, LLC	612K	WSCHSTZN01	NY
2013-03-25	916-347	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	FAIR OAKS	CA
2013-03-25	917-801	0–9 XXXall 10 · 3 holders which blocks →	CSC VOICE, LLC	612K	NWYRCYZN03	NY
2013-03-25	925-239	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	WALNUT CRK	CA
2013-03-25	929-228	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN03	NY
2013-03-25	929-229	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF NEW YORK, LLC - NY	155E	NWYRCYZN08	NY
2013-03-25	940-218	0–9 XXXall 10 · 5 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	DENTON	TX
2013-03-25	951-366	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	LAKEVIEWNU	CA
2013-03-22	226-247	not yet reported which blocks →	TELUS Integrated Communications	2782	McGregor	—
2013-03-22	226-248	not yet reported which blocks →	TELUS Integrated Communications	2782	Wheatley	—
2013-03-22	226-249	not yet reported which blocks →	TELUS Integrated Communications	2782	Thamesville	—
2013-03-22	365-560	not yet reported which blocks →	Comwave Networks	160G	Beeton	—
2013-03-22	415-549	0–9 XXXall 10 · 7 holders which blocks →	LEVEL 3 TELECOM OF CALIFORNIA, LP - CA	7718	SNFC CNTRL	CA
2013-03-22	506-799	not yet reported which blocks →	Iristel Inc.	154E	Saint John	—
2013-03-22	639-571	not yet reported which blocks →	SaskTel Mobility	9868	Regina	—
2013-03-22	812-914	0–9 XXXall 10 · 7 holders which blocks →	PAETEC ITEL, LLC	829J	NEW ALBANY	IN
2013-03-22	909-929	0–9 XXXall 10 · 6 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	CLAREMONT	CA
2013-03-22	913-304	0–9 XXXall 10 · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2013-03-22	913-305	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2013-03-22	913-309	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2013-03-22	951-350	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	HEMT SNJC	CA
2013-03-22	951-357	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	HEMT HEMT	CA
2013-03-22	951-365	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	TEMECULA	CA
2013-03-22	951-981	0–9 XXXall 10 · 5 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	LAKEVIEWNU	CA
2013-03-21	276-296	0–9 XXXall 10 · 6 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA	7299	INDEPNDNCE	VA
2013-03-21	314-384	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	551G	CREVECOEUR	MO
2013-03-21	417-450	0–9 XXXall 10 · 5 holders which blocks →	NUSO, LLC	551G	SPRINGFLD	MO
2013-03-21	515-330	0–9 XXXall 10 · 4 holders which blocks →	MCC TELEPHONY OF IOWA, LLC - IA	751F	DES MOINES	IA
2013-03-21	573-606	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	NUSO, LLC	551G	JEFFERSNCY	MO
2013-03-21	816-859	0–9 XXXall 10 · 5 holders which blocks →	NUSO, LLC	551G	KANSASCITY	MO
2013-03-21	908-409	0–9 XXXall 10 · 8 holders which blocks →	CSC VOICE, LLC	612K	ELIZABETH	NJ
2013-03-21	985-213	0–9 XXXall 10 · 3 holders which blocks →	ADVANCED TEL., INC. - LA	8839	LAROSE	LA
2013-03-20	210-740	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	SANANTONIO	TX
2013-03-20	432-234	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	TERMINAL	TX
2013-03-20	469-601	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRANDPRARI	TX
2013-03-20	469-662	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRANDPRARI	TX
2013-03-20	469-919	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MCKINNEY	TX
2013-03-20	832-917	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	HOUSTON	TX
2013-03-20	832-919	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	HOUSTON	TX
2013-03-19	224-337	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FOX LAKE	IL
2013-03-19	469-603	0–9 XXXwhole prefix which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	DALLAS	TX
2013-03-19	561-410	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2013-03-19	832-913	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 OF TELECOM OF TEXAS, LLC - TX	7074	KATY	TX
2013-03-18	305-901	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	KEYS	FL
2013-03-18	321-301	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	COCOA	FL
2013-03-18	405-898	0–9 XXXall 10 · 6 holders which blocks →	NUSO, LLC	551G	OKLA CITY	OK

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.