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
2002-05-31	347-733	none assigned yet which blocks →	METROPCS, INC.	5562	NWYRCYZN07	NY
2002-05-31	352-273	not yet reported which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	GAINESVL	FL
2002-05-31	432-249	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	FORT DAVIS	TX
2002-05-31	432-290	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	FTSTOCKTON	TX
2002-05-31	432-295	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MARFA	TX
2002-05-31	432-878	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GOLDSMITH	TX
2002-05-31	509-250	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	GOLDENDALE	WA
2002-05-31	509-637	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	WH SALMON	WA
2002-05-31	520-220	2XXX3XXX4XXX5XXX7XXX · 4 holders which blocks →	T-MOBILE USA, INC.	6529	SIERRAVIST	AZ
2002-05-31	660-227	3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	BUTLER	MO
2002-05-31	678-880	0–9 XXXall 10 · 4 holders which blocks →	WINDSTREAM GEORGIA COMMUNICATIONS CORP.	4332	CANTON	GA
2002-05-31	780-885	not yet reported which blocks →	Fido Solutions Inc.	5643	Edmonton	—
2002-05-31	786-476	not yet reported which blocks →	FUSION CLOUD SERVICES, LLC	206A	MIAMI	FL
2002-05-31	786-624	0XXX1XXX7XXX8XXX9XXX · 2 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	MIAMI	FL
2002-05-31	806-478	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	ONVOY, LLC - TX	903C	LOCKNEY	TX
2002-05-31	850-381	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	PANAMACITY	FL
2002-05-31	856-381	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NJ	4804	WOODBURY	NJ
2002-05-31	903-263	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	CARTHAGE	TX
2002-05-31	912-279	6XXX7XXX8XXX9XXX · 2 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	BRUNSWICK	GA
2002-05-31	915-440	0XXX1XXX2XXX3XXX4XXX5XXX6XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	CLINT	TX
2002-05-31	978-460	5XXX7XXX8XXX9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	SUDBURY	MA
2002-05-30	203-520	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	BRIDGEPORT	CT
2002-05-30	203-548	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CT	4800	STAMFORD	CT
2002-05-30	203-808	2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	WATERBURY	CT
2002-05-30	229-379	0XXX2XXX3XXX4XXX5XXX7XXX8XXX · 3 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	THOMASVL	GA
2002-05-30	267-477	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CORE COMMUNICATIONS, INC. - PA	3806	LINELXNGTN	PA
2002-05-30	479-689	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AR	5179	VAN BUREN	AR
2002-05-30	701-864	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - ND	8054	GRANDFORKS	ND
2002-05-30	715-441	0XXX5XXX7XXX · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	HUDSON	WI
2002-05-30	715-816	0XXX2XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GORDON	WI
2002-05-30	715-817	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SUPERIOR	WI
2002-05-30	717-773	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - PA	4007	HARISBGZN1	PA
2002-05-30	806-557	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - TX	903C	CANYON	TX
2002-05-30	856-631	0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	PAETEC ITEL, LLC	829J	HADDON HTS	NJ
2002-05-30	860-759	5XXX6XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	MIDDLETOWN	CT
2002-05-30	860-839	7XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NEWBRITAIN	CT
2002-05-30	860-891	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CT	4800	MOODUS	CT
2002-05-30	903-699	0XXX1XXX2XXX which blocks →	AT&T - LOCAL	7421	LONGVIEW	TX
2002-05-29	262-732	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	LEVEL 3 TELECOM OF WISCONSIN, LP - WI	7322	CALEDONIA	WI
2002-05-29	330-662	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	MEDINA	OH
2002-05-29	336-846	not yet reported which blocks →	SKYBEST COMMUNICATIONS, INC. - NC	9539	WJEFFERSON	NC
2002-05-29	402-705	1XXX2XXX3XXX4XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NE	5807	HASTINGS	NE
2002-05-29	405-592	0–9 XXXall 10 · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OK	5257	HOLDENVL	OK
2002-05-29	405-716	0–9 XXXall 10 · 8 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OK	5257	SEMINOLE	OK
2002-05-29	715-512	1XXX2XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	THORP	WI
2002-05-29	774-258	3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	NORTHBORO	MA
2002-05-29	845-671	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NANUET	NY
2002-05-29	850-879	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	TALLAHASSE	FL
2002-05-29	908-302	not yet reported which blocks →	COOPERATIVE COMMUNICATIONS, INC.	8407	UNIONVILLE	NJ
2002-05-29	908-592	not yet reported which blocks →	COOPERATIVE COMMUNICATIONS, INC.	8407	CRANFORD	NJ

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.