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
2019-08-30	815-613	5XXX6XXX7XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	DIXON	IL
2019-08-29	208-551	0–9 XXXall 10 · 4 holders which blocks →	TDS METROCOM, LLC	520K	COERDALENE	ID
2019-08-29	470-622	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - GA	6116	ATLANTA NE	GA
2019-08-29	515-466	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	ONVOY, LLC - IA	221F	WHITTEMORE	IA
2019-08-29	516-788	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY	6959	NASSAUZN02	NY
2019-08-29	563-281	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - IA	221F	MUSCATINE	IA
2019-08-29	639-384	not yet reported which blocks →	Bell Mobility	6574	Saskatoon	—
2019-08-29	641-334	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - IA	221F	ROSE HILL	IA
2019-08-29	641-461	0XXX1XXX2XXX7XXX8XXX9XXX · 4 holders which blocks →	HD CARRIER LLC	321J	CHARLES CY	IA
2019-08-29	701-779	0–9 XXXall 10 · 3 holders which blocks →	HD CARRIER LLC	321J	DICKINSON	ND
2019-08-29	712-217	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - IA	221F	CARTERLAKE	IA
2019-08-29	712-401	0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks →	ONVOY, LLC - IA	221F	CRESCENT	IA
2019-08-29	712-409	0–9 XXXall 10 · 7 holders which blocks →	ONVOY, LLC - IA	221F	SILVERCITY	IA
2019-08-29	720-740	0–9 XXXall 10 · 2 holders which blocks →	HD CARRIER LLC	321J	DECKERS	CO
2019-08-29	825-339	not yet reported which blocks →	Bell Mobility	6574	Calgary	—
2019-08-29	825-340	not yet reported which blocks →	Bell Mobility	6574	Calgary	—
2019-08-29	850-798	0–9 XXXall 10 · 7 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	PENSACOLA	FL
2019-08-29	850-822	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	FTWALTNBCH	FL
2019-08-29	850-946	3XXX6XXX · 2 holders which blocks →	FRACTEL, LLC	965H	PONCE LEON	FL
2019-08-29	850-955	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks →	FRACTEL, LLC	965H	PNAMACYBCH	FL
2019-08-29	850-977	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	PENSACOLA	FL
2019-08-29	941-267	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	PTCHARLOTT	FL
2019-08-29	941-269	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	BRADENTON	FL
2019-08-28	236-335	not yet reported which blocks →	Bell Mobility	6574	Vancouver	—
2019-08-28	321-326	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - FL	4802	MELBOURNE	FL
2019-08-28	330-910	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - OH	4863	AURORA	OH
2019-08-28	352-574	0–9 XXXall 10 · 5 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	GAINESVL	FL
2019-08-28	365-223	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Gormley	—
2019-08-28	365-226	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Hagersville	—
2019-08-28	365-227	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Hamilton	—
2019-08-28	437-880	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Toronto	—
2019-08-28	515-495	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - IA	221F	PRAIRIE CY	IA
2019-08-28	515-498	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - IA	221F	LIVERMORE	IA
2019-08-28	515-762	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - IA	221F	RUNNELLS	IA
2019-08-28	548-558	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Galt	—
2019-08-28	548-855	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Guelph	—
2019-08-28	575-320	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks →	PEERLESS NETWORK OF NEW MEXICO, LLC - NM	377H	PORTALES	NM
2019-08-28	575-338	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks →	PEERLESS NETWORK OF NEW MEXICO, LLC - NM	377H	LA MESA	NM
2019-08-28	612-441	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2019-08-28	612-474	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	TWINCITIES	MN
2019-08-28	618-470	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	7136	COLUMBIA	IL
2019-08-28	719-467	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	PUEBLO	CO
2019-08-28	775-449	0XXX1XXX9XXX · 3 holders which blocks →	HD CARRIER LLC	321J	COTNWD CRK	NV
2019-08-28	813-582	0–9 XXXall 10 · 5 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TAMPACEN	FL
2019-08-27	249-881	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Brechin	—
2019-08-27	249-882	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Collingwood	—
2019-08-27	249-883	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Cookstown	—
2019-08-27	352-758	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	FOREST	FL
2019-08-27	361-259	0–9 XXXall 10 · 2 holders which blocks →	EXIANT COMMUNICATIONS LLC	114J	C CHRISTI	TX
2019-08-27	365-838	not yet reported which blocks →	Rogers Communications Canada Inc.	571G	Caledon East	—

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.