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
2004-03-05	989-207	2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOPE	MI
2004-03-05	989-210	2XXX6XXX7XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	AU GRES	MI
2004-03-04	218-410	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	VIRGINIA	MN
2004-03-04	281-691	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	BAYTOWN	TX
2004-03-04	325-203	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BROWNWOOD	TX
2004-03-04	580-339	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ELK CITY	OK
2004-03-04	662-772	0–9 XXXall 10 · 3 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL	9419	MEMPHIS	MS
2004-03-04	902-728	not yet reported which blocks →	Bragg Communications Inc.	4878	Parrsboro	—
2004-03-04	902-729	not yet reported which blocks →	Bragg Communications Inc.	4878	Borden	—
2004-03-04	902-730	not yet reported which blocks →	Bragg Communications Inc.	4878	Crapaud	—
2004-03-04	902-731	not yet reported which blocks →	Bragg Communications Inc.	4878	Mount Stewart	—
2004-03-04	902-732	not yet reported which blocks →	Bragg Communications Inc.	4878	River Hebert	—
2004-03-04	902-734	not yet reported which blocks →	Bragg Communications Inc.	4878	Hunter River	—
2004-03-04	902-739	not yet reported which blocks →	Bragg Communications Inc.	4878	Morell-St. Peters	—
2004-03-04	902-741	not yet reported which blocks →	Bragg Communications Inc.	4878	Murray River	—
2004-03-04	903-948	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	PALESTINE	TX
2004-03-03	401-343	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	AT&T - LOCAL	7421	HOPEVALLEY	RI
2004-03-03	718-607	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	NWYRCYZN08	NY
2004-03-02	787-461	0–9 XXXwhole prefix which blocks →	SUNCOM DBA T-MOBILE USA	8645	SANTURCE	PR
2004-03-01	330-234	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WOOSTER	OH
2004-03-01	402-217	0–9 XXXall 10 · 2 holders which blocks →	UNITED STATES CELLULAR - NE	6263	LINCOLN	NE
2004-03-01	414-446	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	MILWAUKZN4	WI
2004-03-01	423-781	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TN	4806	ETOWAH	TN
2004-03-01	506-291	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Bouctouche	—
2004-03-01	506-921	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	St. Stephen	—
2004-03-01	540-307	0–9 XXXall 10 · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - VA	8825	DUBLIN	VA
2004-03-01	607-204	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	CHENANGBDG	NY
2004-03-01	620-204	2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KS	6532	STERLING	KS
2004-03-01	641-208	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IA	6570	BLOOMFIELD	IA
2004-03-01	780-994	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Edmonton	—
2004-03-01	845-233	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HYDE PARK	NY
2004-03-01	850-826	5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	CRESTVIEW	FL
2004-03-01	903-280	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	TEXARKANA	TX
2004-03-01	904-208	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL JACKSONVILLE LICENSES, INC.	7472	JACKSONVL	FL
2004-03-01	904-214	0–9 XXXall 10 · 5 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	MIDDLEBURG	FL
2004-02-27	403-836	not yet reported which blocks →	Bell Mobility	6574	Calgary	—
2004-02-27	778-229	not yet reported which blocks →	Bell Mobility	6574	Vancouver	—
2004-02-27	813-943	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	TAMPANTH	FL
2004-02-27	813-944	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	TAMPASTH	FL
2004-02-27	847-890	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	ARLIGTNHTS	IL
2004-02-26	317-224	0–9 XXXall 10 · 2 holders which blocks →	PAETEC ITEL, LLC	829J	INDIANAPLS	IN
2004-02-26	512-890	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	PEERLESS NETWORK OF TEXAS, LLC - TX	177F	BUCHANNDAM	TX
2004-02-26	715-607	0XXX1XXX4XXX8XXX9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	CLEAR LAKE	WI
2004-02-25	254-423	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	KILLEEN	TX
2004-02-25	586-203	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	MT CLEMENS	MI
2004-02-25	606-331	3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY	6500	ASHLAND	KY
2004-02-25	940-634	6XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ROSSTON	TX
2004-02-24	215-847	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2004-02-24	215-908	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PHLDLPHZN1	PA
2004-02-24	252-365	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	ROANOKERPD	NC

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.