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
2016-02-05	778-718	not yet reported which blocks →	Iristel Inc.	154E	Keremeos	—
2016-02-05	902-914	not yet reported which blocks →	Iristel Inc.	154E	Inverness	—
2016-02-05	902-915	not yet reported which blocks →	Iristel Inc.	154E	Kentville	—
2016-02-05	951-404	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	TEMECULA	CA
2016-02-04	205-308	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - AL	604E	PINSON	AL
2016-02-04	226-458	not yet reported which blocks →	Iristel Inc.	154E	Goderich	—
2016-02-04	226-602	not yet reported which blocks →	Iristel Inc.	154E	Essex	—
2016-02-04	226-702	not yet reported which blocks →	Iristel Inc.	154E	Durham	—
2016-02-04	249-200	not yet reported which blocks →	Iristel Inc.	154E	Espanola	—
2016-02-04	306-900	not yet reported which blocks →	Iristel Inc.	154E	Fort Qu'Appelle	—
2016-02-04	321-522	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - FL	937C	COCOA	FL
2016-02-04	346-223	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	HOUSTON	TX
2016-02-04	346-226	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	HOUSTON	TX
2016-02-04	346-227	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	HOUSTON	TX
2016-02-04	365-651	not yet reported which blocks →	Iristel Inc.	154E	Dunnville	—
2016-02-04	365-801	not yet reported which blocks →	Iristel Inc.	154E	Fort Erie	—
2016-02-04	458-292	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - OR	750E	BEND	OR
2016-02-04	506-703	not yet reported which blocks →	Iristel Inc.	154E	Florenceville	—
2016-02-04	506-704	not yet reported which blocks →	Iristel Inc.	154E	Grand Falls	—
2016-02-04	506-706	not yet reported which blocks →	Iristel Inc.	154E	Dalhousie	—
2016-02-04	506-906	not yet reported which blocks →	Iristel Inc.	154E	Doaktown	—
2016-02-04	510-369	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - CA	649C	RICHMOND	CA
2016-02-04	561-332	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	DELRAY BCH	FL
2016-02-04	587-419	not yet reported which blocks →	Iristel Inc.	154E	Drumheller	—
2016-02-04	587-809	not yet reported which blocks →	Iristel Inc.	154E	Fox Creek	—
2016-02-04	587-812	not yet reported which blocks →	Iristel Inc.	154E	Grande Cache	—
2016-02-04	605-931	1XXX2XXX3XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD	6569	HURON	SD
2016-02-04	628-236	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	NOVATO	CA
2016-02-04	639-390	not yet reported which blocks →	Iristel Inc.	154E	Davidson	—
2016-02-04	763-453	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
2016-02-04	778-901	not yet reported which blocks →	Iristel Inc.	154E	Grand Forks	—
2016-02-04	778-902	not yet reported which blocks →	Iristel Inc.	154E	Gulf Islands	—
2016-02-04	782-820	not yet reported which blocks →	Iristel Inc.	154E	Digby	—
2016-02-04	805-257	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - CA	649C	PASOROBLES	CA
2016-02-04	807-790	not yet reported which blocks →	Iristel Inc.	154E	Geraldton	—
2016-02-04	873-371	not yet reported which blocks →	Iristel Inc.	154E	Deauville	—
2016-02-04	971-286	0–9 XXXall 10 · 8 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR	5820	WARRENTON	OR
2016-02-03	213-418	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - CA	649C	LSAN DA 01	CA
2016-02-03	249-499	not yet reported which blocks →	Iristel Inc.	154E	Collingwood	—
2016-02-03	249-502	not yet reported which blocks →	Iristel Inc.	154E	Bracebridge	—
2016-02-03	249-503	not yet reported which blocks →	Iristel Inc.	154E	Campbellford	—
2016-02-03	312-366	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CHICGOZN01	IL
2016-02-03	343-503	not yet reported which blocks →	Iristel Inc.	154E	Carleton Place	—
2016-02-03	365-650	not yet reported which blocks →	Iristel Inc.	154E	Claremont	—
2016-02-03	405-554	0–9 XXXall 10 · 4 holders which blocks →	PEERLESS NETWORK OF OKLAHOMA, LLC - OK	384H	POCASSET	OK
2016-02-03	470-276	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - GA	067D	CONYERS	GA
2016-02-03	480-566	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AZ	3285	PHOENIX	AZ
2016-02-03	505-582	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	ALBUQURQUE	NM
2016-02-03	506-701	not yet reported which blocks →	Iristel Inc.	154E	Campbellton	—
2016-02-03	506-702	not yet reported which blocks →	Iristel Inc.	154E	Caraquet	—

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.