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
2021-03-17	332-245	0–9 XXXall 10 · 3 holders which blocks →	PEERING HUB, INC. - NY	818H	NWYRCYZN01	NY
2021-03-17	339-565	0XXX1XXX2XXX3XXX5XXX7XXX8XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LINCOLN	MA
2021-03-17	351-352	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	GEORGETOWN	MA
2021-03-17	351-355	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	AMESBURY	MA
2021-03-17	351-361	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ASHBY	MA
2021-03-17	351-388	0XXX5XXX8XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	HARVARD	MA
2021-03-17	351-501	2XXX4XXX5XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	HUBBARDSTN	MA
2021-03-17	447-410	0XXX4XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC	224C	CHAMPAURBN	IL
2021-03-17	447-610	0XXX1XXX2XXX · 2 holders which blocks →	ONVOY, LLC	224C	JACKSONVL	IL
2021-03-17	447-810	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC	224C	MATTOON	IL
2021-03-17	540-794	0–9 XXXall 10 · 2 holders which blocks →	STRATUS NETWORKS	495J	ROANOKE	VA
2021-03-17	561-646	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	WPALMBEACH	FL
2021-03-17	607-688	0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	MILFORD	NY
2021-03-17	607-944	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	HORNELL	NY
2021-03-17	612-459	0–9 XXXall 10 · 4 holders which blocks →	STRATUS NETWORKS	495J	TWINCITIES	MN
2021-03-17	619-907	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	SNDG SNDG	CA
2021-03-17	626-876	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	LA PUENTE	CA
2021-03-17	626-884	0–9 XXXall 10 · 2 holders which blocks →	FRACTEL, LLC	965H	ALHAMBRA	CA
2021-03-17	640-203	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	PRINCETON	NJ
2021-03-17	659-225	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 5 holders which blocks →	STRATUS NETWORKS	495J	VINCENT	AL
2021-03-17	680-348	0XXX2XXX3XXX5XXX6XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	MINOA	NY
2021-03-17	680-386	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	LIVERPOOL	NY
2021-03-17	680-465	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	PALMYRA	NY
2021-03-17	680-499	0XXX1XXX3XXX4XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	CLYDE	NY
2021-03-17	680-588	1XXX2XXX3XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	WOLCOTT	NY
2021-03-17	680-599	0XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks →	FRACTEL, LLC	965H	HAMILTON	NY
2021-03-17	680-786	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	LA FARGEVL	NY
2021-03-17	680-922	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	PORT BYRON	NY
2021-03-17	680-955	0XXX1XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	PARISH	NY
2021-03-17	709-207	not yet reported which blocks →	TELUS Integrated Communications	2782	St. John's	—
2021-03-17	754-259	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	FTLAUDERDL	FL
2021-03-17	763-341	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	CAMBRIDGE	MN
2021-03-17	774-465	0XXX1XXX3XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	STRATUS NETWORKS	495J	NORTON	MA
2021-03-17	774-466	3XXX4XXX6XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BOYLSTON	MA
2021-03-17	774-533	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BRIDGEWTR	MA
2021-03-17	774-557	0XXX1XXX2XXX4XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BUZZARDSBY	MA
2021-03-17	774-677	0–9 XXXall 10 · 6 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ATTLEBORO	MA
2021-03-17	774-744	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BLACKSTONE	MA
2021-03-17	774-747	1XXX2XXX7XXX8XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ASSONET	MA
2021-03-17	802-965	0XXX1XXX8XXX · 3 holders which blocks →	STRATUS NETWORKS	495J	CASTLETON	VT
2021-03-17	803-982	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC	6398	YORK	SC
2021-03-17	814-210	1XXX2XXX3XXX4XXX6XXX7XXX8XXX · 3 holders which blocks →	STRATUS NETWORKS	495J	CENTREHALL	PA
2021-03-17	854-217	0–9 XXXall 10 · 4 holders which blocks →	STRATUS NETWORKS	495J	SUMMERVL	SC
2021-03-17	857-847	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	DORCHESTER	MA
2021-03-17	857-867	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BROOKLINE	MA
2021-03-17	862-363	0–9 XXXall 10 · 6 holders which blocks →	STRATUS NETWORKS	495J	MORRISTOWN	NJ
2021-03-17	872-910	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC	224C	CHICGOZN01	IL
2021-03-17	873-756	not yet reported which blocks →	Fibernetics Corporation	464D	Bouchette	—
2021-03-17	873-757	not yet reported which blocks →	Fibernetics Corporation	464D	Chapeau	—
2021-03-17	985-339	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	STRATUS NETWORKS	495J	LULING	LA

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.