Recent prefix assignments

349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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 31

ONVOY, LLC - CA 27

NEW CINGULAR WIRELESS PCS, LLC - IL 27

ONVOY, LLC - NJ 15

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
2022-08-10	838-257	0–9 XXXall 10 · 5 holders which blocks →	NUSO, LLC	732J	ATHENS	NY
2022-08-10	845-909	1XXX9XXX · 2 holders which blocks →	NUSO, LLC	732J	NORTHCLOVE	NY
2022-08-10	864-793	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	LAURESRURL	SC
2022-08-10	864-820	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	GREENVILLE	SC
2022-08-10	914-543	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	732J	MT VERNON	NY
2022-08-10	931-370	0XXX1XXX · 2 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	NEWJHNSNVL	TN
2022-08-09	209-997	0XXX7XXX9XXX · 3 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	FARMINGTON	CA
2022-08-09	220-232	0–9 XXXall 10 · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	ATHENS	OH
2022-08-09	220-233	0XXX3XXX9XXX · 3 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	RESACA	OH
2022-08-09	224-476	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	7136	DESPLAINES	IL
2022-08-09	224-481	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WHEELING	IL
2022-08-09	346-578	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	LANGHAMCRK	TX
2022-08-09	409-490	0XXX1XXX6XXX9XXX · 4 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	ANAHUAC	TX
2022-08-09	509-298	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	MOSES LAKE	WA
2022-08-09	513-840	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - OH	464C	CINCINNATI	OH
2022-08-09	531-286	0XXX1XXX2XXX4XXX8XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NE	3233	OAKLAND	NE
2022-08-09	561-875	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	WPALMBEACH	FL
2022-08-09	561-884	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	WPALMBEACH	FL
2022-08-09	564-215	0XXX1XXX2XXX3XXX4XXX5XXX7XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA	5812	PT ANGELES	WA
2022-08-09	618-856	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CENTRALIA	IL
2022-08-09	618-858	0XXX1XXX7XXX · 3 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	AVISTON	IL
2022-08-09	618-860	0XXX1XXX6XXX7XXX8XXX · 4 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	GERMANTOWN	IL
2022-08-09	618-862	0XXX which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	ST LIBORY	IL
2022-08-09	682-383	0–9 XXXall 10 · 4 holders which blocks →	FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS	0701	NRICHLDHLS	TX
2022-08-09	683-200	not yet reported which blocks →	IXICA Communications Inc.	812H	Waubaushene	—
2022-08-09	683-300	not yet reported which blocks →	IXICA Communications Inc.	812H	Stroud	—
2022-08-09	683-333	not yet reported which blocks →	IXICA Communications Inc.	812H	Lafontaine	—
2022-08-09	683-400	not yet reported which blocks →	IXICA Communications Inc.	812H	Severn Bridge	—
2022-08-09	683-444	not yet reported which blocks →	IXICA Communications Inc.	812H	Cookstown	—
2022-08-09	683-500	not yet reported which blocks →	IXICA Communications Inc.	812H	Oro	—
2022-08-09	683-600	not yet reported which blocks →	IXICA Communications Inc.	812H	Elmvale	—
2022-08-09	683-666	not yet reported which blocks →	IXICA Communications Inc.	812H	Bluewater	—
2022-08-09	707-916	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - CA	649C	ARCATA	CA
2022-08-09	707-936	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - CA	649C	FRFLD-SUIS	CA
2022-08-09	707-990	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - CA	649C	VALLEJO	CA
2022-08-09	716-497	0XXX1XXX4XXX5XXX · 2 holders which blocks →	ONVOY, LLC- NY	384C	ELLINGTON	NY
2022-08-09	726-228	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	SANANTONIO	TX
2022-08-09	727-598	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	CLEARWATER	FL
2022-08-09	727-603	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	CLEARWATER	FL
2022-08-09	770-520	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ADAIRSVL	GA
2022-08-09	770-588	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CARTERSVL	GA
2022-08-09	770-764	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	VILLA RICA	GA
2022-08-09	772-271	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	PTST LUCIE	FL
2022-08-09	786-882	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - FL	937C	PERRINE	FL
2022-08-09	786-883	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	KEYS	FL
2022-08-09	786-884	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	NORTH DADE	FL
2022-08-09	786-885	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	MIAMI	FL
2022-08-09	804-671	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 5 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	PORT ROYAL	VA
2022-08-09	804-707	0–9 XXXall 10 · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - VA	7238	MIDLOTHIAN	VA
2022-08-09	804-753	0–9 XXXall 10 · 4 holders which blocks →	BOOST SUBSCRIBERCO L.L.C.	490J	KINGWILLIM	VA

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.