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
2002-05-17	671-678	not yet reported which blocks →	PTI PACIFICA INC.	387C	AGANA	GU
2002-05-17	702-348	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	LAS VEGAS	NV
2002-05-17	704-656	0–9 XXXwhole prefix which blocks →	WINDSTREAM COMMUNICATIONS, INC. - NC	7970	CHARLOTTE	NC
2002-05-17	707-812	1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	T-MOBILE USA, INC.	6529	NAPA	CA
2002-05-17	707-932	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	GARBERVL	CA
2002-05-17	707-971	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	T-MOBILE USA, INC.	6529	PTLM MAIN	CA
2002-05-17	760-473	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	OCSD CRLS	CA
2002-05-17	760-912	not yet reported which blocks →	T-MOBILE USA, INC.	6529	VICTORVL	CA
2002-05-17	765-891	3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	LEBANON	IN
2002-05-17	775-315	8XXX9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NV	6458	CARSONCITY	NV
2002-05-17	785-829	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	NEX-TECH WIRELESS, LLC	122D	SALINA	KS
2002-05-17	812-708	1XXX2XXX3XXX4XXX8XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	ELBERFELD	IN
2002-05-17	812-709	3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN	6725	LOOGOOTEE	IN
2002-05-17	818-943	not yet reported which blocks →	T-MOBILE USA, INC.	6529	RESEDA	CA
2002-05-17	819-439	not yet reported which blocks →	Videotron Ltd.	8306	Gatineau	—
2002-05-17	828-237	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NC	3235	GARDENCITY	NC
2002-05-17	858-414	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNDG MRMS	CA
2002-05-17	909-528	2XXX3XXX4XXX5XXX7XXX8XXX which blocks →	T-MOBILE USA, INC.	6529	MENTONE	CA
2002-05-17	909-991	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	T-MOBILE USA, INC.	6529	S BERNDINO	CA
2002-05-17	916-821	not yet reported which blocks →	METROPCS, INC.	5562	SCRM MAIN	CA
2002-05-17	920-548	0–9 XXXall 10 · 3 holders which blocks →	TDS METROCOM, LLC	520K	GREEN BAY	WI
2002-05-17	956-622	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	HARLINGEN	TX
2002-05-16	240-643	1XXX2XXX3XXX4XXX5XXX7XXX8XXX which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	WSHNGTNZN3	MD
2002-05-16	252-375	3XXX4XXX8XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	GREENVILLE	NC
2002-05-16	254-244	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY, LLC - TX	903C	OGLESBY	TX
2002-05-16	254-499	0–9 XXXall 10 · 8 holders which blocks →	METROPCS, INC.	5562	GATESVILLE	TX
2002-05-16	254-655	1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	GRANDE COMMUNICATIONS NETWORKS, INC. - TX	7670	LORENA	TX
2002-05-16	307-399	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY	6566	LARAMIE	WY
2002-05-16	312-582	0–9 XXXall 10 · 6 holders which blocks →	ILLINOIS BELL TEL CO	9329	CHICGOZN01	IL
2002-05-16	325-719	not yet reported which blocks →	TEXAS COMMUNICATIONS, INC.	6820	SONORA	TX
2002-05-16	336-583	3XXX7XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	ROXBORO	NC
2002-05-16	336-639	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	BURLINGTON	NC
2002-05-16	360-550	0–9 XXXall 10 · 4 holders which blocks →	INTRADO COMMUNICATIONS, LLC	841C	BREMERTON	WA
2002-05-16	360-562	0–9 XXXall 10 · 6 holders which blocks →	INTRADO COMMUNICATIONS, LLC	834C	LONGVIEW	WA
2002-05-16	405-351	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ALEX	OK
2002-05-16	405-668	1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	FORT COBB	OK
2002-05-16	405-687	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BINGER	OK
2002-05-16	405-829	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CEMENT	OK
2002-05-16	405-933	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ANADARKO	OK
2002-05-16	409-549	5XXX7XXX8XXX which blocks →	AERIAL COMMUNICATIONS, INC.	6701	PORTARTHUR	TX
2002-05-16	417-218	1XXX2XXX3XXX8XXX9XXX · 2 holders which blocks →	TERRA NOVA TELECOM INC.	145J	BLUE EYE	MO
2002-05-16	417-222	1XXX2XXX3XXX4XXX7XXX8XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	GALENA	MO
2002-05-16	479-721	0XXX4XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	ROGERS	AR
2002-05-16	509-330	5XXX6XXX · 2 holders which blocks →	INLAND CELLULAR LLC	1484	PULLMAN	WA
2002-05-16	516-655	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NASSAUZN05	NY
2002-05-16	518-866	0XXX5XXX7XXX · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	AMSTERDAM	NY
2002-05-16	518-878	none assigned yet which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	SCHENCTADY	NY
2002-05-16	518-879	none assigned yet which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	SARATOGSPG	NY
2002-05-16	520-227	none assigned yet which blocks →	T-MOBILE USA, INC.	6529	SIERRAVIST	AZ
2002-05-16	567-208	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	FINDLAY	OH

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.