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
2016-02-16	346-230	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - TX	903C	APOLLO	TX
2016-02-16	365-652	not yet reported which blocks →	Iristel Inc.	154E	Welland	—
2016-02-16	365-880	not yet reported which blocks →	Videotron Ltd.	787G	St. Catharines-Thorold	—
2016-02-16	434-772	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF VIRGINIA, LLC - VA	275G	CAPRON	VA
2016-02-16	440-493	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - OH	464C	VICTORY	OH
2016-02-16	587-813	not yet reported which blocks →	Iristel Inc.	154E	Lethbridge	—
2016-02-16	631-705	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC- NY	384C	ATLANTIC	NY
2016-02-16	639-395	not yet reported which blocks →	Iristel Inc.	154E	Watrous	—
2016-02-16	782-826	not yet reported which blocks →	Iristel Inc.	154E	Weymouth	—
2016-02-16	786-901	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	KEYS	FL
2016-02-16	804-599	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF VIRGINIA, LLC - VA	275G	TAPPAHNNCK	VA
2016-02-16	845-378	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	GOSHEN	NY
2016-02-16	862-313	0–9 XXXwhole prefix which blocks →	PAETEC ITEL, LLC	829J	NEWARK	NJ
2016-02-16	909-787	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	RIALTO	CA
2016-02-16	956-549	7XXX which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	STILLMAN	TX
2016-02-15	530-805	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	ORLAND	CA
2016-02-15	551-255	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	HACKENSACK	NJ
2016-02-15	628-877	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - CA	649C	CORTEMADRA	CA
2016-02-15	631-212	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC- NY	384C	COMMACK	NY
2016-02-15	631-975	0–9 XXXall 10 · 7 holders which blocks →	ONVOY, LLC- NY	384C	CTRMORICHS	NY
2016-02-15	669-377	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	MORGANHILL	CA
2016-02-15	831-315	0–9 XXXall 10 · 7 holders which blocks →	PEERLESS NETWORK OF CALIFORNIA, LLC - CA	373F	SOLEDAD	CA
2016-02-15	848-204	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - NJ	637C	WOODBRIDGE	NJ
2016-02-15	909-402	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - CA	649C	MARSHALL	CA
2016-02-12	226-641	not yet reported which blocks →	Iristel Inc.	154E	Tillsonburg	—
2016-02-12	226-840	not yet reported which blocks →	Iristel Inc.	154E	Walkerton	—
2016-02-12	336-762	0–9 XXXall 10 · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	THOMASVL	NC
2016-02-12	343-304	not yet reported which blocks →	Iristel Inc.	154E	Vankleek Hill	—
2016-02-12	431-301	not yet reported which blocks →	Iristel Inc.	154E	Starbuck	—
2016-02-12	431-302	not yet reported which blocks →	Iristel Inc.	154E	Stonewall	—
2016-02-12	440-771	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - OH	464C	HILLCREST	OH
2016-02-12	470-291	0–9 XXXall 10 · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - GA	7435	BARNESVL	GA
2016-02-12	470-577	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - GA	067D	GAINESVL	GA
2016-02-12	506-713	not yet reported which blocks →	Iristel Inc.	154E	St. George	—
2016-02-12	506-714	not yet reported which blocks →	Iristel Inc.	154E	St. Stephen	—
2016-02-12	506-715	not yet reported which blocks →	Iristel Inc.	154E	Shippagan	—
2016-02-12	506-716	not yet reported which blocks →	Iristel Inc.	154E	Tracadie	—
2016-02-12	513-975	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - OH	7532	CINCINNATI	OH
2016-02-12	587-847	not yet reported which blocks →	Iristel Inc.	154E	Valleyview	—
2016-02-12	587-848	not yet reported which blocks →	Iristel Inc.	154E	Strathmore	—
2016-02-12	587-856	not yet reported which blocks →	Iristel Inc.	154E	Vauxhall	—
2016-02-12	587-857	not yet reported which blocks →	Iristel Inc.	154E	Veteran	—
2016-02-12	587-858	not yet reported which blocks →	Iristel Inc.	154E	Vulcan	—
2016-02-12	616-591	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	GRAND RPDS	MI
2016-02-12	616-727	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLCV - MI	543C	ADA	MI
2016-02-12	628-220	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - CA	8826	SNFC CNTRL	CA
2016-02-12	709-910	not yet reported which blocks →	Iristel Inc.	154E	Upper Island Cove	—
2016-02-12	778-906	not yet reported which blocks →	Iristel Inc.	154E	Squamish	—
2016-02-12	805-707	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CA	649C	OJAI	CA
2016-02-12	845-403	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC- NY	384C	SPRING VLY	NY

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.