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
2016-07-28	910-766	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NC	998E	DUNN	NC
2016-07-28	980-550	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NC	998E	LOWELL	NC
2016-07-28	984-226	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NC	998E	KENLY	NC
2016-07-27	325-757	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 6 holders which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	TRENT	TX
2016-07-27	343-317	not yet reported which blocks →	Distributel	082E	Ottawa-Hull	—
2016-07-27	346-773	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HSTNSUBURB	TX
2016-07-27	365-206	not yet reported which blocks →	Distributel	082E	Caledonia	—
2016-07-27	365-222	not yet reported which blocks →	Primus Telecommunications Canada Inc.	201A	Niagara Falls	—
2016-07-27	438-315	not yet reported which blocks →	Distributel	083E	Montreal	—
2016-07-27	515-582	0–9 XXXall 10 · 7 holders which blocks →	WINDSTREAM IOWA COMMUNICATIONS, INC. - SYSTEMS	1170	MADRID	IA
2016-07-27	580-972	0XXX9XXX · 2 holders which blocks →	WINDSTREAM OKLAHOMA, INC.	1965	STERLING	OK
2016-07-27	587-943	not yet reported which blocks →	Distributel	081E	Calgary	—
2016-07-27	601-419	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MS	992E	COLUMBIA	MS
2016-07-27	609-732	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	SOMERS PT	NJ
2016-07-27	628-205	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SNFC CNTRL	CA
2016-07-27	647-665	not yet reported which blocks →	Videotron Ltd.	787G	Toronto	—
2016-07-27	669-207	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	SNJS SOUTH	CA
2016-07-27	682-412	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	WEATHERFD	TX
2016-07-27	682-760	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	GLENDALE	TX
2016-07-27	727-351	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	CLEARWATER	FL
2016-07-27	774-762	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	NEWBEDFORD	MA
2016-07-27	778-248	not yet reported which blocks →	Primus Telecommunications Canada Inc.	201A	New Westminster	—
2016-07-27	778-957	not yet reported which blocks →	Bell Mobility	6574	Vancouver	—
2016-07-27	857-772	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	BOSTON	MA
2016-07-27	870-912	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - AR	802C	NASHVILLE	AR
2016-07-27	872-762	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	CHICGOZN06	IL
2016-07-27	941-413	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	SARASOTA	FL
2016-07-26	312-796	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	CHICGOZN01	IL
2016-07-26	325-312	0–9 XXXall 10 · 3 holders which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	LORAINE	TX
2016-07-26	325-313	0–9 XXXall 10 · 4 holders which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	BAIRD	TX
2016-07-26	343-602	not yet reported which blocks →	Bell Canada	8051	Ottawa-Hull	—
2016-07-26	513-968	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LEBANON	OH
2016-07-26	561-903	0–9 XXXall 10 · 8 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	BOYNTONBCH	FL
2016-07-26	581-371	not yet reported which blocks →	Videotron Ltd.	8306	Saint-Malachie	—
2016-07-26	647-577	not yet reported which blocks →	TELUS Integrated Communications	2782	Toronto	—
2016-07-26	806-615	0XXX2XXX3XXX4XXX9XXX · 2 holders which blocks →	VALOR TELECOMM TX, LP-TX #1 DBA WINDSTREAM COMM SW	1163	WHEELER	TX
2016-07-26	806-616	0XXX1XXX2XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks →	TEXAS WINDSTREAM, LLC	2153	PLAINS	TX
2016-07-26	830-754	0XXX2XXX3XXX4XXX6XXX7XXX9XXX · 7 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	ASHERTON	TX
2016-07-26	872-760	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	CHICGOZN10	IL
2016-07-26	904-785	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	WINDSTREAM FLORIDA, INC.	0336	HASTINGS	FL
2016-07-26	904-901	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	GREENCVSPG	FL
2016-07-26	937-986	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BEAVERCREK	OH
2016-07-26	971-754	0–9 XXXall 10 · 7 holders which blocks →	LEVEL 3 TELECOM OF OREGON, LLC - OR	7537	PORTLAND	OR
2016-07-25	231-212	0XXX1XXX3XXX5XXX7XXX9XXX · 4 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	INTERLOCHN	MI
2016-07-25	248-963	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MI	991E	ROCHESTER	MI
2016-07-25	302-608	0–9 XXXall 10 · 8 holders which blocks →	BANDWIDTH.COM CLEC, LLC - DE	073F	DOVER	DE
2016-07-25	442-291	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	VISTA	CA
2016-07-25	475-232	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CT	4800	STAMFORD	CT
2016-07-25	609-551	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NJ	118F	WILDWOOD	NJ
2016-07-25	614-612	0XXX1XXX2XXX4XXX5XXX8XXX9XXX · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - OH	001F	ALTON	OH

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.