Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/27/2026

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
2020-09-16	639-710	not yet reported which blocks →	Iristel Inc.	154E	Regina	—
2020-09-16	639-829	not yet reported which blocks →	Iristel Inc.	154E	Regina	—
2020-09-16	669-336	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	CAMPBELL	CA
2020-09-16	682-336	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ARLINGTON	TX
2020-09-16	704-368	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - NC	638E	NEW LONDON	NC
2020-09-16	737-276	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	KYLE	TX
2020-09-16	804-610	0–9 XXXall 10 · 2 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	RICHMOND	VA
2020-09-16	850-928	0–9 XXXall 10 · 3 holders which blocks →	IP HORIZON LLC	515J	PANAMACITY	FL
2020-09-16	971-383	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	PORTLAND	OR
2020-09-16	980-485	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - NC	638E	OAKBORO	NC
2020-09-15	226-708	not yet reported which blocks →	Iristel Inc.	154E	Windsor	—
2020-09-15	240-739	0–9 XXXall 10 · 7 holders which blocks →	IP HORIZON LLC	515J	FREDERICK	MD
2020-09-15	385-977	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	SALT LAKE	UT
2020-09-15	431-445	not yet reported which blocks →	Iristel Inc.	154E	Winnipeg	—
2020-09-15	445-212	0–9 XXXall 10 · 3 holders which blocks →	IP HORIZON LLC	515J	PHLDLPHZN1	PA
2020-09-15	571-416	0–9 XXXall 10 · 4 holders which blocks →	IP HORIZON LLC	515J	LEESBURG	VA
2020-09-15	623-264	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	PHOENIX	AZ
2020-09-15	659-895	0–9 XXXall 10 · 4 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	BIRMINGHAM	AL
2020-09-15	672-890	not yet reported which blocks →	Fibernetics Corporation	464D	Aldergrove	—
2020-09-15	672-891	not yet reported which blocks →	Fibernetics Corporation	464D	Boston Bar	—
2020-09-15	672-892	not yet reported which blocks →	Fibernetics Corporation	464D	Bowen Island	—
2020-09-15	672-893	not yet reported which blocks →	Fibernetics Corporation	464D	Britannia Beach	—
2020-09-15	672-894	not yet reported which blocks →	Fibernetics Corporation	464D	Pitt Meadows	—
2020-09-15	672-895	not yet reported which blocks →	Fibernetics Corporation	464D	Squamish	—
2020-09-15	672-896	not yet reported which blocks →	Fibernetics Corporation	464D	White Rock	—
2020-09-15	672-897	not yet reported which blocks →	Fibernetics Corporation	464D	Whonnock	—
2020-09-15	779-297	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks →	IP HORIZON LLC	515J	STERLING	IL
2020-09-15	779-298	0XXX1XXX2XXX8XXX · 4 holders which blocks →	IP HORIZON LLC	515J	FORREST	IL
2020-09-15	803-923	0–9 XXXall 10 · 5 holders which blocks →	IP HORIZON LLC	515J	COLUMBIA	SC
2020-09-15	813-692	0–9 XXXall 10 · 5 holders which blocks →	VONAGE AMERICA LLC	197D	TAMPACEN	FL
2020-09-15	854-214	0–9 XXXall 10 · 5 holders which blocks →	IP HORIZON LLC	515J	CHARLESTON	SC
2020-09-15	912-502	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	HINESVILLE	GA
2020-09-15	929-556	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN13	NY
2020-09-15	970-746	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	BERTHOUD	CO
2020-09-14	202-961	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - DC	6402	WSHNGTNZN1	DC
2020-09-14	202-964	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - DC	074F	WSHNGTNZN1	DC
2020-09-14	202-967	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	478J	WSHNGTNZN1	DC
2020-09-14	226-697	not yet reported which blocks →	Iristel Inc.	154E	London	—
2020-09-14	226-896	not yet reported which blocks →	Iristel Inc.	154E	Kitchener-Waterloo	—
2020-09-14	236-239	not yet reported which blocks →	Iristel Inc.	154E	Victoria	—
2020-09-14	236-240	not yet reported which blocks →	Iristel Inc.	154E	Victoria	—
2020-09-14	236-245	not yet reported which blocks →	Iristel Inc.	154E	Richmond	—
2020-09-14	236-326	not yet reported which blocks →	Iristel Inc.	154E	Vancouver	—
2020-09-14	365-795	not yet reported which blocks →	Iristel Inc.	154E	Hamilton	—
2020-09-14	405-916	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	EDMOND	OK
2020-09-14	561-538	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BOCA RATON	FL
2020-09-14	579-569	not yet reported which blocks →	Iristel Inc.	154E	Laval-Est	—
2020-09-14	581-892	not yet reported which blocks →	Iristel Inc.	154E	Quebec	—
2020-09-14	585-553	0–9 XXXall 10 · 5 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	BATAVIA	NY
2020-09-14	681-317	0–9 XXXall 10 · 3 holders which blocks →	IP HORIZON LLC	515J	CHRLSTNZN1	WV

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/27/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.