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
2021-05-27	830-658	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BIG WELLS	TX
2021-05-27	859-438	0–9 XXXall 10 · 6 holders which blocks →	STRATUS NETWORKS	495J	COVINGTON	KY
2021-05-27	872-835	0–9 XXXwhole prefix which blocks →	TON80 COMMUNICATIONS, LLC	516J	CHICGOZN01	IL
2021-05-27	920-607	0XXX1XXX4XXX5XXX7XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CAMPBELSPT	WI
2021-05-27	956-696	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	RIGRANDECY	TX
2021-05-26	223-283	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - PA	547E	ELIZABTHTN	PA
2021-05-26	223-293	0XXX1XXX2XXX3XXX4XXX8XXX9XXX · 6 holders which blocks →	ONVOY SPECTRUM, LLC	624H	FAWN GROVE	PA
2021-05-26	223-303	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - PA	547E	HANOVER	PA
2021-05-26	223-343	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	HUMMELSTN	PA
2021-05-26	223-423	0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - PA	547E	ICKESBURG	PA
2021-05-26	272-448	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	SAYRE	PA
2021-05-26	434-464	0XXX2XXX3XXX6XXX · 3 holders which blocks →	ONVOY, LLC - VA	138E	VIRGILINA	VA
2021-05-26	480-769	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	PHOENIX	AZ
2021-05-26	534-535	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks →	ONVOY, LLC - WI	225C	JUNCTIONCY	WI
2021-05-26	548-336	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Mount Forest	—
2021-05-26	548-337	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Mount Forest	—
2021-05-26	548-339	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Mount Forest	—
2021-05-26	548-533	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Mount Forest	—
2021-05-26	548-633	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Mount Forest	—
2021-05-26	548-733	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Mount Forest	—
2021-05-26	574-570	0XXX5XXX which blocks →	ONVOY, LLC - IN	097D	PLYMOUTH	IN
2021-05-26	586-287	0–9 XXXall 10 · 4 holders which blocks →	STRATUS NETWORKS	495J	MT CLEMENS	MI
2021-05-26	602-813	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - AZ	587F	PHOENIX	AZ
2021-05-26	607-405	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NORWICH	NY
2021-05-26	636-218	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MAXVILLE	MO
2021-05-26	651-384	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	LAKE CITY	MN
2021-05-26	715-626	0XXX2XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	LOYAL	WI
2021-05-26	781-678	0–9 XXXall 10 · 4 holders which blocks →	TC SYSTEMS, INC.	7135	HULL	MA
2021-05-26	804-645	0–9 XXXall 10 · 7 holders which blocks →	ONVOY SPECTRUM, LLC	624H	MCKENNEY	VA
2021-05-26	804-809	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	MIDLOTHIAN	VA
2021-05-26	804-820	0XXX3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	MONTPELIER	VA
2021-05-26	804-853	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	MONTROSS	VA
2021-05-26	845-814	0–9 XXXall 10 · 4 holders which blocks →	PEERING HUB, INC. - NY	818H	NANUET	NY
2021-05-26	845-817	0XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	PEERING HUB, INC. - NY	818H	NORTHSALEM	NY
2021-05-26	845-819	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	PEERING HUB, INC. - NY	818H	TUXEDO	NY
2021-05-26	854-223	0–9 XXXall 10 · 5 holders which blocks →	VONAGE AMERICA LLC	197D	PAWLEYS IS	SC
2021-05-26	878-237	0–9 XXXall 10 · 5 holders which blocks →	STRATUS NETWORKS	495J	BEAVER FLS	PA
2021-05-26	920-790	0XXX1XXX2XXX7XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	NEWFRANKEN	WI
2021-05-26	947-236	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	ROCHESTER	MI
2021-05-26	989-408	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	MTPLEASANT	MI
2021-05-25	228-336	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	MOSS POINT	MS
2021-05-25	231-324	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - MI	770E	HARBOR SPG	MI
2021-05-25	251-515	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	BAYMINETTE	AL
2021-05-25	251-615	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - AL	604E	FAIRHOPE	AL
2021-05-25	254-438	0XXX1XXX2XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	CSC VOICE, LLC	612K	FLORENCE	TX
2021-05-25	302-599	0–9 XXXall 10 · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	HOCKESSIN	DE
2021-05-25	302-662	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	SELBYVILLE	DE
2021-05-25	332-529	0–9 XXXall 10 · 2 holders which blocks →	SKYE TELECOM LLC DBA SKYETEL	622J	NWYRCYZN01	NY
2021-05-25	401-361	0XXX1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 5 holders which blocks →	TELNYX LLC	073H	WARWICK	RI
2021-05-25	405-957	0–9 XXXall 10 · 4 holders which blocks →	STRATUS NETWORKS	495J	NORMAN	OK

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.