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
2021-04-08	640-224	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	PLAINSBORO	NJ
2021-04-08	640-650	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	NEW EGYPT	NJ
2021-04-08	661-934	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	ARVIN	CA
2021-04-08	737-828	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	KEMPNER	TX
2021-04-08	762-296	0XXX1XXX3XXX4XXX8XXX · 4 holders which blocks →	ONVOY, LLC - GA	067D	NOBLE	GA
2021-04-08	762-297	0XXX1XXX3XXX4XXX7XXX · 2 holders which blocks →	ONVOY, LLC - GA	067D	VILLANOW	GA
2021-04-08	808-736	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - HI	210H	WAILUKU	HI
2021-04-08	808-865	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - HI	210H	HILO	HI
2021-04-08	816-704	0–9 XXXall 10 · 6 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	KANSASCITY	MO
2021-04-08	828-934	1XXX6XXX8XXX9XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	ELLENBORO	NC
2021-04-08	848-488	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ATLATCHLDS	NJ
2021-04-08	856-567	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	WENONAH	NJ
2021-04-08	856-880	0XXX1XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	PAULSBORO	NJ
2021-04-08	862-626	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BELLEVILLE	NJ
2021-04-08	872-664	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	CHICGOZN01	IL
2021-04-08	908-585	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CRANFORD	NJ
2021-04-08	913-934	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	KANSASCITY	KS
2021-04-08	947-376	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	TROY	MI
2021-04-08	985-837	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	THIBODAUX	LA
2021-04-07	226-809	not yet reported which blocks →	Mornington Communications Co-operative Ltd.	400E	Shakespeare	—
2021-04-07	352-837	0–9 XXXall 10 · 7 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	KEYSTN HTS	FL
2021-04-07	438-528	not yet reported which blocks →	Videotron Ltd.	328F	Montreal	—
2021-04-07	561-663	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BOCA RATON	FL
2021-04-07	561-664	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	DELRAY BCH	FL
2021-04-07	585-853	0XXX6XXX9XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	ATLANTA	NY
2021-04-07	659-837	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BIRMINGHAM	AL
2021-04-07	727-476	0–9 XXXall 10 · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	CLEARWATER	FL
2021-04-07	754-752	0–9 XXXall 10 · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	POMPANOBCH	FL
2021-04-07	762-867	0–9 XXXall 10 · 4 holders which blocks →	COMMIO, LLC	939H	AUGUSTA	GA
2021-04-07	763-726	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	CAMBRIDGE	MN
2021-04-07	772-874	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SEBASTIAN	FL
2021-04-07	781-650	0–9 XXXall 10 · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	WEYMOUTH	MA
2021-04-07	808-909	0–9 XXXall 10 · 5 holders which blocks →	COMMIO, LLC	939H	HONOLULU	HI
2021-04-07	838-448	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	KEENE	NY
2021-04-07	838-558	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	LYON MT	NY
2021-04-07	838-638	0XXX1XXX2XXX3XXX4XXX6XXX8XXX9XXX · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	MARIAVILLE	NY
2021-04-07	838-738	0XXX1XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	PHILMONT	NY
2021-04-07	838-934	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	ALBANY	NY
2021-04-07	838-938	0XXX1XXX2XXX3XXX4XXX7XXX8XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	PORT HENRY	NY
2021-04-07	845-934	6XXX which blocks →	TON80 COMMUNICATIONS, LLC	516J	POUGHKEPSI	NY
2021-04-07	854-837	0–9 XXXall 10 · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	MTPLEASANT	SC
2021-04-07	865-968	0XXX1XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	KINGSTON	TN
2021-04-07	873-938	not yet reported which blocks →	Bell Mobility	6574	Matagami	—
2021-04-07	980-488	0–9 XXXwhole prefix which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NC	3235	CHARLOTTE	NC
2021-04-07	984-281	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC	7835	DURHAM	NC
2021-04-06	213-556	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	LSAN DA 09	CA
2021-04-06	272-879	0–9 XXXall 10 · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	JIM THORPE	PA
2021-04-06	326-210	0XXX1XXX2XXX3XXX4XXX8XXX · 2 holders which blocks →	ONVOY, LLC - OH	464C	RUSSELLVL	OH
2021-04-06	445-866	0–9 XXXall 10 · 3 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	PHPHSBZN43	PA
2021-04-06	469-961	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	GRANDPRARI	TX

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.