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
2014-09-30	720-778	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	DENVER	CO
2014-09-30	747-227	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	SNFN PACM	CA
2014-09-30	810-775	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	BRIGHTON	MI
2014-09-30	857-270	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	CAMBRIDGE	MA
2014-09-30	857-957	0–9 XXXall 10 · 5 holders which blocks →	WIDE VOICE, LLC - MA	756G	BOSTON	MA
2014-09-30	862-276	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BLOOMFIELD	NJ
2014-09-30	872-276	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL	6333	CHICGOZN06	IL
2014-09-30	872-817	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL	6333	CHICGOZN04	IL
2014-09-30	910-855	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	GIBSON	NC
2014-09-29	202-823	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC	6402	WSHNGTNZN1	DC
2014-09-29	213-257	0–9 XXXall 10 · 4 holders which blocks →	PACIFIC BELL	9740	LSAN DA 01	CA
2014-09-29	224-339	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL	6333	ELGIN	IL
2014-09-29	224-443	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL	6333	DESPLAINES	IL
2014-09-29	262-899	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	WAUKESHA	WI
2014-09-29	312-956	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CHICGOZN01	IL
2014-09-29	469-623	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GRANDPRARI	TX
2014-09-29	513-908	0–9 XXXall 10 · 2 holders which blocks →	METROPCS, INC.	5562	CINCINNATI	OH
2014-09-29	585-628	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	BELFAST	NY
2014-09-29	585-635	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	EROCHESTER	NY
2014-09-29	628-222	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - CA	649C	SNFC CNTRL	CA
2014-09-29	786-650	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	HOMESTEAD	FL
2014-09-29	808-209	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - HI	6516	HILO	HI
2014-09-29	910-405	0–9 XXXall 10 · 6 holders which blocks →	FRONTIER COMMUNICATIONS OF AMERICA, INC. - NC	440G	LAURINBURG	NC
2014-09-29	915-267	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CLINT	TX
2014-09-29	916-298	0–9 XXXall 10 · 4 holders which blocks →	CONSOLIDATED COMMUNICATIONS OF CALIFORNIA COMPANY	2334	RSVL MAIN	CA
2014-09-29	940-303	0XXX3XXX9XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ELBERT	TX
2014-09-29	980-430	0–9 XXXall 10 · 6 holders which blocks →	AT&T ENTERPRISES, LLC	516C	CHARLOTTE	NC
2014-09-26	204-613	not yet reported which blocks →	Westman Media Cooperative Ltd	120F	Ste. Rose du Lac	—
2014-09-26	206-886	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	SEATTLE	WA
2014-09-26	210-973	0–9 XXXall 10 · 2 holders which blocks →	AT&T ENTERPRISES, LLC	516C	SANANTONIO	TX
2014-09-26	231-434	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MANTON	MI
2014-09-26	251-270	0–9 XXXall 10 · 5 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	FAIRHOPE	AL
2014-09-26	272-202	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	WILLIAMSPT	PA
2014-09-26	407-773	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WINTERPARK	FL
2014-09-26	442-248	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	ESCONDIDO	CA
2014-09-26	516-727	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	NASSAUZN02	NY
2014-09-26	587-461	not yet reported which blocks →	TELUS	8084	Spruce Grove	—
2014-09-26	587-462	not yet reported which blocks →	TELUS	8084	Edmonton	—
2014-09-26	607-442	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	ELMIRA	NY
2014-09-26	647-945	not yet reported which blocks →	Fibernetics Corporation	464D	Toronto	—
2014-09-26	810-289	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ST CLAIR	MI
2014-09-26	816-492	0–9 XXXall 10 · 4 holders which blocks →	AT&T ENTERPRISES, LLC	516C	KANSASCITY	MO
2014-09-26	902-410	not yet reported which blocks →	Bragg Communications Inc.	421G	Halifax	—
2014-09-25	208-996	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - ID	192F	BOISE	ID
2014-09-25	231-685	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	RAVENNA	MI
2014-09-25	312-937	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL	6333	CHICGOZN01	IL
2014-09-25	317-960	0–9 XXXall 10 · 3 holders which blocks →	METROPCS, INC.	5562	INDIANAPLS	IN
2014-09-25	321-351	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	COCOA	FL
2014-09-25	407-757	0–9 XXXall 10 · 3 holders which blocks →	PAETEC ITEL, LLC	829J	ORLANDO	FL
2014-09-25	470-343	0–9 XXXall 10 · 3 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	ATLANTA	GA

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.