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
2019-10-29	210-903	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - TX	903C	SANANTONIO	TX
2019-10-29	226-544	not yet reported which blocks →	Iristel Inc.	154E	Aylmer	—
2019-10-29	228-356	0–9 XXXall 10 · 2 holders which blocks →	FRACTEL, LLC	965H	HURLEY	MS
2019-10-29	236-200	not yet reported which blocks →	Iristel Inc.	154E	Vancouver	—
2019-10-29	405-930	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	OKLA CITY	OK
2019-10-29	425-300	0–9 XXXall 10 · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - WA	6121	BELLEVUE	WA
2019-10-29	430-766	2XXX3XXX4XXX5XXX6XXX9XXX · 3 holders which blocks →	FRACTEL, LLC	965H	ECTOR	TX
2019-10-29	470-476	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	ATLANTA	GA
2019-10-29	470-510	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - GA	6540	ATLANTA	GA
2019-10-29	506-770	not yet reported which blocks →	Iristel Inc.	346J	Saint John	—
2019-10-29	517-400	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LANSING	MI
2019-10-29	531-510	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LINCOLN	NE
2019-10-29	581-470	not yet reported which blocks →	Iristel Inc.	346J	Bonaventure	—
2019-10-29	581-489	not yet reported which blocks →	Iristel Inc.	346J	Sainte-Anne-des-Monts	—
2019-10-29	581-780	not yet reported which blocks →	Iristel Inc.	346J	Havre-Saint-Pierre	—
2019-10-29	581-871	not yet reported which blocks →	Iristel Inc.	346J	Natashquan	—
2019-10-29	605-981	0–9 XXXall 10 · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	RAPID CITY	SD
2019-10-29	672-996	not yet reported which blocks →	TELUS Mobility	8301	Prince George	—
2019-10-29	672-997	not yet reported which blocks →	TELUS Mobility	8301	Prince George	—
2019-10-29	709-799	not yet reported which blocks →	Iristel Inc.	346J	St. John's	—
2019-10-29	769-356	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	PICAYUNE	MS
2019-10-29	816-710	0–9 XXXall 10 · 6 holders which blocks →	ONVOY SPECTRUM, LLC	624H	KANSASCITY	MO
2019-10-29	941-271	0–9 XXXall 10 · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - FL	8300	SARASOTA	FL
2019-10-28	346-407	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	HOUSTON	TX
2019-10-28	430-266	0–9 XXXall 10 · 8 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	EMORY	TX
2019-10-28	431-700	not yet reported which blocks →	Iristel Inc.	346J	Winnipeg	—
2019-10-28	581-471	not yet reported which blocks →	Iristel Inc.	346J	Chandler	—
2019-10-28	639-700	not yet reported which blocks →	Iristel Inc.	346J	Saskatoon	—
2019-10-28	639-707	not yet reported which blocks →	Iristel Inc.	346J	Regina	—
2019-10-28	712-317	0–9 XXXall 10 · 4 holders which blocks →	AIRUS, INC - IA	423H	SIOUX CITY	IA
2019-10-28	765-756	0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - IN	097D	RICHMOND	IN
2019-10-25	240-709	0–9 XXXall 10 · 7 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	LAUREL236	MD
2019-10-25	252-310	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC	6324	GATESVILLE	NC
2019-10-25	267-876	0–9 XXXall 10 · 6 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	PHLDLPHZN1	PA
2019-10-25	302-546	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS ENTERPRISES, LP	6626	DOVER	DE
2019-10-25	314-866	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	LADUE	MO
2019-10-25	314-946	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	KIRKWOOD	MO
2019-10-25	346-510	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	HOUSTON	TX
2019-10-25	365-994	not yet reported which blocks →	TELUS Mobility	8303	Brampton	—
2019-10-25	409-710	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BEAUMONT	TX
2019-10-25	417-377	2XXX7XXX9XXX · 3 holders which blocks →	FRACTEL, LLC	965H	MANES	MO
2019-10-25	458-245	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	EUGENE	OR
2019-10-25	475-261	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT	6388	NEW HAVEN	CT
2019-10-25	573-946	0XXX1XXX3XXX6XXX · 4 holders which blocks →	FRACTEL, LLC	965H	POCAHONTAS	MO
2019-10-25	605-606	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SIOUX FLS	SD
2019-10-25	636-758	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	ST CLAIR	MO
2019-10-25	650-507	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	PALO ALTO	CA
2019-10-25	650-512	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	PALO ALTO	CA
2019-10-25	672-998	not yet reported which blocks →	TELUS Mobility	8301	Abbotsford	—
2019-10-25	718-540	0–9 XXXwhole prefix which blocks →	ONVOY, LLC- NY	384C	NWYRCYZN03	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.