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
2013-04-11	779-800	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC	224C	CRYSTAL LK	IL
2013-04-11	832-733	0–9 XXXwhole prefix which blocks →	SOUTHWESTERN BELL	9533	HOUSTON	TX
2013-04-11	860-390	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	PEERLESS NETWORK OF CONNECTICUT, LLC - CT	539F	LYME	CT
2013-04-11	860-400	0–9 XXXall 10 · 8 holders which blocks →	PEERLESS NETWORK OF CONNECTICUT, LLC - CT	539F	LEDYARD	CT
2013-04-11	860-407	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF CONNECTICUT, LLC - CT	539F	JEWETTCITY	CT
2013-04-11	860-744	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF CONNECTICUT, LLC - CT	539F	CLINTON	CT
2013-04-11	872-356	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC	224C	CHICGOZN10	IL
2013-04-11	872-639	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC	224C	CHICGOZN07	IL
2013-04-11	909-326	0–9 XXXall 10 · 8 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CA	981E	POMONA	CA
2013-04-11	980-206	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC	350F	TROUTMAN	NC
2013-04-11	980-494	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC	350F	STANLEY	NC
2013-04-10	224-864	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	MUNDELEIN	IL
2013-04-10	224-901	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	PISTAKHLDS	IL
2013-04-10	254-530	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	MALONE	TX
2013-04-10	254-626	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	BYNUM	TX
2013-04-10	254-994	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	MOUNT CALM	TX
2013-04-10	267-875	0–9 XXXall 10 · 8 holders which blocks →	PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA	967E	QUAKERTOWN	PA
2013-04-10	289-964	not yet reported which blocks →	Comwave Networks	160G	Newtonville	—
2013-04-10	331-240	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	W CHICAGO	IL
2013-04-10	331-803	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	LEMONT	IL
2013-04-10	431-233	not yet reported which blocks →	MTS Inc.	991B	Ste. Rose du Lac	—
2013-04-10	440-444	0–9 XXXall 10 · 4 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	LORAIN	OH
2013-04-10	470-297	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF GEORGIA, LLC - GA	909E	CUMMING	GA
2013-04-10	541-903	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	PRINEVILLE	OR
2013-04-10	579-919	not yet reported which blocks →	Comwave Networks	160G	Pont-Viau	—
2013-04-10	579-929	not yet reported which blocks →	Comwave Networks	160G	Chomedey	—
2013-04-10	579-939	not yet reported which blocks →	Comwave Networks	160G	Laval-Est	—
2013-04-10	579-969	not yet reported which blocks →	Comwave Networks	160G	Ste-Rose	—
2013-04-10	579-989	not yet reported which blocks →	Comwave Networks	160G	Laval-Ouest	—
2013-04-10	586-200	0–9 XXXall 10 · 7 holders which blocks →	COMCAST IP PHONE, LLC	318J	ROSEVILLE	MI
2013-04-10	587-334	not yet reported which blocks →	Bell Mobility	6574	Edmonton	—
2013-04-10	587-768	not yet reported which blocks →	Distributel	081E	Wetaskiwin	—
2013-04-10	587-769	not yet reported which blocks →	Distributel	081E	Camrose	—
2013-04-10	587-770	not yet reported which blocks →	Distributel	081E	Medicine Hat	—
2013-04-10	587-771	not yet reported which blocks →	Distributel	081E	Grande Prairie	—
2013-04-10	682-301	0–9 XXXall 10 · 6 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	GLENDALE	TX
2013-04-10	708-719	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	MOKENA	IL
2013-04-10	708-803	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	OAK FOR SO	IL
2013-04-10	779-228	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	MAZON	IL
2013-04-10	779-994	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF ILLINOIS, LLC - IL	063E	CRYSTAL LK	IL
2013-04-10	862-803	0–9 XXXall 10 · 6 holders which blocks →	CSC VOICE, LLC	612K	HOPATCONG	NJ
2013-04-10	970-289	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	BRUSH	CO
2013-04-10	970-528	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	BERTHOUD	CO
2013-04-10	970-591	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	ESTES PARK	CO
2013-04-10	970-661	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	BAYFIELD	CO
2013-04-10	970-713	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	CRESTEDBTE	CO
2013-04-10	970-718	0–9 XXXall 10 · 6 holders which blocks →	PEERLESS NETWORK OF COLORADO, LLC - CO	278F	BASALT	CO
2013-04-09	226-616	not yet reported which blocks →	Comwave Networks	160G	Galt	—
2013-04-09	226-632	not yet reported which blocks →	Comwave Networks	160G	Breslau	—
2013-04-09	226-642	not yet reported which blocks →	Comwave Networks	160G	Ayr	—

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.