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
2019-09-12	857-437	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	ROXBURY	MA
2019-09-12	862-347	0–9 XXXall 10 · 6 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	ORANGE	NJ
2019-09-12	872-249	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - IL	6115	CHICGOZN01	IL
2019-09-12	908-567	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	ELIZABETH	NJ
2019-09-12	959-212	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - CT	6624	NEWBRITAIN	CT
2019-09-12	971-710	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	PORTLAND	OR
2019-09-11	346-395	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	HOUSTON	TX
2019-09-11	365-556	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Thornhill	—
2019-09-11	365-557	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Tottenham	—
2019-09-11	365-559	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Unionville	—
2019-09-11	365-566	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Woodbridge	—
2019-09-11	365-995	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Sutton	—
2019-09-11	404-905	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ATLANTA	GA
2019-09-11	424-439	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7139	INGLEWOOD	CA
2019-09-11	506-281	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Saint-Antoine	—
2019-09-11	506-585	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Salisbury	—
2019-09-11	506-677	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Sussex	—
2019-09-11	548-585	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Stratford	—
2019-09-11	548-686	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Tavistock	—
2019-09-11	548-787	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Thornbury	—
2019-09-11	709-808	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	St. John's	—
2019-09-11	709-855	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Torbay	—
2019-09-11	912-453	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - GA	8392	BAXLEY	GA
2019-09-10	254-363	not yet reported which blocks →	SHELCOMM	0051	ALEXANDER	TX
2019-09-10	313-710	0–9 XXXall 10 · 6 holders which blocks →	ONVOY SPECTRUM, LLC	624H	DETROITZN1	MI
2019-09-10	431-554	not yet reported which blocks →	TELUS Mobility	8303	Winnipeg	—
2019-09-10	469-692	not yet reported which blocks →	SHELCOMM	0051	ALLEN	TX
2019-09-10	506-299	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Memramcook	—
2019-09-10	506-322	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Cocagne	—
2019-09-10	506-550	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Port Elgin	—
2019-09-10	506-551	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Hillsborough	—
2019-09-10	506-556	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Miramichi	—
2019-09-10	506-559	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Petitcodiac	—
2019-09-10	506-668	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Fredericton	—
2019-09-10	506-722	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Dorchester	—
2019-09-10	506-881	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Bathurst	—
2019-09-10	506-885	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Cap-Pele	—
2019-09-10	506-933	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Edmundston	—
2019-09-10	709-333	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Corner Brook	—
2019-09-10	737-244	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	TAYLOR	TX
2019-09-10	816-683	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - MO	093F	KANSASCITY	MO
2019-09-10	845-780	0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 6 holders which blocks →	CATSKILLS COMMUNICATIONS, INC - NY	360H	PHOENICIA	NY
2019-09-10	912-317	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	STATESBORO	GA
2019-09-10	912-343	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	HINESVILLE	GA
2019-09-09	217-760	0XXX1XXX2XXX · 2 holders which blocks →	VONAGE AMERICA LLC	197D	CARROLLTON	IL
2019-09-09	217-907	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	ST JOSEPH	IL
2019-09-09	217-912	0–9 XXXall 10 · 3 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	RIDGE FARM	IL
2019-09-09	236-319	not yet reported which blocks →	Shaw Telecom Inc.	497E	Port Hardy	—
2019-09-09	236-549	not yet reported which blocks →	TELUS	8086	Gulf Islands	—
2019-09-09	430-263	1XXX3XXX9XXX · 3 holders which blocks →	VALOR TELECOMM TX, LD-TX #2 DBA WINDSTREAM COMM SW	1181	MARQUEZ	TX

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.