Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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 19

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
2016-06-23	256-803	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - AL	072F	BOAZ	AL
2016-06-23	267-576	0–9 XXXall 10 · 6 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	DOYLESTOWN	PA
2016-06-23	267-665	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	PHLDLPHZN2	PA
2016-06-23	315-901	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	SYRACUSE	NY
2016-06-23	323-607	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	LSAN DA 06	CA
2016-06-23	323-689	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	LSAN DA 08	CA
2016-06-23	337-703	0–9 XXXall 10 · 6 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA LA - LLC	653C	LAFAYETTE	LA
2016-06-23	405-451	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - OK	409F	WELLSTON	OK
2016-06-23	480-486	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	PHOENIX	AZ
2016-06-23	540-390	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - VA	079F	HARTWOOD	VA
2016-06-23	606-552	0–9 XXXall 10 · 3 holders which blocks →	POWERTEL KENTUCKY LICENSES, INC.	365C	PIKEVILLE	KY
2016-06-23	606-745	5XXX9XXX · 2 holders which blocks →	WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON	9690	ALBANY	KY
2016-06-23	612-772	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-06-23	651-802	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-06-23	712-430	0XXX1XXX2XXX3XXX4XXX7XXX · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	MALVERN	IA
2016-06-23	719-394	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CO	026D	COLORDOSPG	CO
2016-06-23	763-760	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-06-23	803-904	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	COLUMBIA	SC
2016-06-23	808-765	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	HILO	HI
2016-06-23	862-904	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	LITTLE FLS	NJ
2016-06-23	864-913	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	SPARTANBG	SC
2016-06-23	909-870	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	UPLAND	CA
2016-06-23	970-546	0–9 XXXall 10 · 8 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	DELTA	CO
2016-06-23	970-832	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	CARBONDALE	CO
2016-06-23	971-757	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	ST HELENS	OR
2016-06-23	980-495	0–9 XXXall 10 · 7 holders which blocks →	COMPORIUM, INC.- NC	749H	CHARLOTTE	NC
2016-06-23	980-595	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NC	998E	CHERRYVL	NC
2016-06-22	234-757	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	ALLIANCE	OH
2016-06-22	236-777	not yet reported which blocks →	Fido Solutions Inc.	5643	Vancouver	—
2016-06-22	405-925	0XXX1XXX2XXX3XXX4XXX9XXX · 2 holders which blocks →	ONVOY, LLC - OK	409F	SPENCER	OK
2016-06-22	407-604	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	OVIEDO	FL
2016-06-22	417-709	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	SPRINGFLD	MO
2016-06-22	431-801	not yet reported which blocks →	Iristel Inc.	154E	Winnipeg	—
2016-06-22	470-332	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ATLANTA SO	GA
2016-06-22	470-488	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ATLANTA SO	GA
2016-06-22	502-735	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	GEORGETOWN	KY
2016-06-22	531-220	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NE	995E	LINCOLN	NE
2016-06-22	561-781	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	JUPITER	FL
2016-06-22	581-477	not yet reported which blocks →	ISP Telecom Inc.	4727	Levis	—
2016-06-22	609-808	0–9 XXXall 10 · 5 holders which blocks →	BARR TELL USA, INC. - NJ	917G	ATLNTIC CY	NJ
2016-06-22	707-308	0–9 XXXall 10 · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	SANTA ROSA	CA
2016-06-22	716-317	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	CLARENCCTR	NY
2016-06-22	778-794	not yet reported which blocks →	TELUS Mobility	8301	Stewart	—
2016-06-22	778-798	not yet reported which blocks →	Fido Solutions Inc.	5643	Vancouver	—
2016-06-22	825-323	not yet reported which blocks →	Distributel	081E	Anzac	—
2016-06-22	825-324	not yet reported which blocks →	Distributel	081E	Conklin	—
2016-06-22	825-325	not yet reported which blocks →	Distributel	081E	Fort Chipewyan	—
2016-06-22	825-326	not yet reported which blocks →	Distributel	081E	Fort Mackay	—
2016-06-22	848-757	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	ATLATCHLDS	NJ
2016-06-22	917-810	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN07	NY

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.