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
2020-06-11	659-234	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	CHELSEA	AL
2020-06-11	681-268	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	HNTNGTNZN1	WV
2020-06-11	762-529	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	AUGUSTA	GA
2020-06-11	810-295	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	BRIGHTON	MI
2020-06-11	854-348	6XXX which blocks →	FRACTEL, LLC	965H	CROSS	SC
2020-06-11	858-301	0–9 XXXall 10 · 2 holders which blocks →	VONAGE AMERICA LLC	197D	EL CAJON	CA
2020-06-11	938-465	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	CHILDERSBG	AL
2020-06-11	951-535	0–9 XXXall 10 · 6 holders which blocks →	VONAGE AMERICA LLC	197D	MURRIETA	CA
2020-06-11	973-381	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NJ	637C	NUTLEY	NJ
2020-06-10	208-593	0–9 XXXall 10 · 5 holders which blocks →	HD CARRIER LLC	321J	BOISE	ID
2020-06-10	254-425	0XXX2XXX4XXX5XXX6XXX7XXX · 2 holders which blocks →	ONVOY, LLC - TX	903C	POTTSVILLE	TX
2020-06-10	254-524	0XXX2XXX4XXX5XXX9XXX · 2 holders which blocks →	ONVOY, LLC - TX	903C	FLAT	TX
2020-06-10	307-900	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	GLENDO	WY
2020-06-10	332-234	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	478J	NWYRCYZN01	NY
2020-06-10	434-474	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY, LLC - VA	138E	HAMPDESDNY	VA
2020-06-10	571-701	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - VA	138E	NOKESVILLE	VA
2020-06-10	571-901	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - VA	138E	ENGLESIDE	VA
2020-06-10	606-430	0–9 XXXwhole prefix which blocks →	INTER MOUNTAIN CABLE DBA MIKROTEC COMMUNICATIONS	2623	PIKEVILLE	KY
2020-06-10	737-268	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	AUSTIN	TX
2020-06-10	804-808	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - VA	138E	FARNHAM	VA
2020-06-10	839-356	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	ORANGEBURG	SC
2020-06-10	845-509	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	WALDEN	NY
2020-06-10	845-991	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC- NY	384C	BEACON	NY
2020-06-10	848-289	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	SOUTHRIVER	NJ
2020-06-10	848-801	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	DUNELLEN	NJ
2020-06-10	848-909	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	LAKEHURST	NJ
2020-06-10	848-986	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NJ	637C	TOMS RIVER	NJ
2020-06-10	848-997	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	FREEHOLD	NJ
2020-06-10	862-802	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NJ	637C	ROCKAWAY	NJ
2020-06-10	862-901	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - NJ	637C	MILLBURN	NJ
2020-06-10	912-465	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	SAVANNAH	GA
2020-06-09	225-569	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	TUNICA	LA
2020-06-09	240-301	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - MD	876D	CLEAR SPG	MD
2020-06-09	269-261	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BATTLE CRK	MI
2020-06-09	314-916	0–9 XXXall 10 · 4 holders which blocks →	CSC WIRELESS, LLC	425J	ST LOUIS	MO
2020-06-09	343-643	not yet reported which blocks →	Fibernetics Corporation	464D	Brockville	—
2020-06-09	351-216	1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HAMILTON	MA
2020-06-09	365-850	not yet reported which blocks →	Fibernetics Corporation	464D	Clarkson	—
2020-06-09	365-851	not yet reported which blocks →	Fibernetics Corporation	464D	Port Credit	—
2020-06-09	365-853	not yet reported which blocks →	Fibernetics Corporation	464D	Burlington	—
2020-06-09	561-497	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BOCA RATON	FL
2020-06-09	629-300	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	FRACTEL, LLC	965H	PLEASANTVW	TN
2020-06-09	727-338	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	CLEARWATER	FL
2020-06-09	731-900	0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	BIG SANDY	TN
2020-06-09	786-833	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	NORTH DADE	FL
2020-06-09	954-833	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	FTLAUDERDL	FL
2020-06-08	224-329	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ROSELLE	IL
2020-06-08	224-946	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	WAUKEGAN	IL
2020-06-08	226-541	not yet reported which blocks →	Fibernetics Corporation	464D	Guelph	—
2020-06-08	226-547	not yet reported which blocks →	Fibernetics Corporation	464D	Woodstock	—

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.