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
2021-05-05	681-335	0XXX2XXX3XXX4XXX5XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ALDERSON	WV
2021-05-05	681-388	0XXX3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks →	ONVOY SPECTRUM, LLC	624H	APPLEGROVE	WV
2021-05-05	682-349	0–9 XXXall 10 · 2 holders which blocks →	TELNYX LLC	073H	GRAPEVINE	TX
2021-05-05	762-783	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	WAYNESBORO	GA
2021-05-05	763-342	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	PRINCETON	MN
2021-05-05	782-322	not yet reported which blocks →	Iristel Inc.	154E	Kentville	—
2021-05-05	786-798	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - FL	8300	MIAMI	FL
2021-05-05	804-650	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC	6855	TAPPAHNNCK	VA
2021-05-05	814-987	2XXX7XXX which blocks →	ONVOY, LLC - PA	547E	SHADE GAP	PA
2021-05-05	814-998	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	AUSTIN	PA
2021-05-05	816-402	0–9 XXXall 10 · 5 holders which blocks →	METROPCS, INC.	5562	RICHMOND	MO
2021-05-05	838-245	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SCHENCTADY	NY
2021-05-05	838-246	0XXX1XXX9XXX · 3 holders which blocks →	TELNYX LLC	073H	CAIRO	NY
2021-05-05	848-309	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	FREEHOLD	NJ
2021-05-05	859-894	0–9 XXXall 10 · 3 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	LEXINGTON	KY
2021-05-05	862-372	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	NEWARK	NJ
2021-05-05	915-899	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	FABENS	TX
2021-05-05	929-582	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN10	NY
2021-05-05	971-397	0XXX1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 4 holders which blocks →	TELNYX LLC	073H	NORTH PL	OR
2021-05-04	224-452	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC	224C	PALATINE	IL
2021-05-04	224-472	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC	224C	WINNETKA	IL
2021-05-04	308-813	2XXX8XXX which blocks →	ONVOY, LLC - NE	549E	HEARTWELL	NE
2021-05-04	308-831	2XXX3XXX which blocks →	ONVOY, LLC - NE	549E	NAPONEE	NE
2021-05-04	308-843	0XXX1XXX2XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - NE	549E	PLEASANTON	NE
2021-05-04	321-667	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	TITUSVILLE	FL
2021-05-04	321-788	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	COCOABEACH	FL
2021-05-04	321-966	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	COCOA	FL
2021-05-04	321-977	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	MELBOURNE	FL
2021-05-04	386-699	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	DEBARY	FL
2021-05-04	405-497	0–9 XXXall 10 · 4 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	OKLA CITY	OK
2021-05-04	434-403	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ALBERTA	VA
2021-05-04	434-428	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CLARKSVL	VA
2021-05-04	434-488	0XXX1XXX4XXX5XXX8XXX9XXX · 6 holders which blocks →	ONVOY SPECTRUM, LLC	624H	KEYSVILLE	VA
2021-05-04	438-577	not yet reported which blocks →	IXICA Communications Inc.	812H	Lachine	—
2021-05-04	438-599	not yet reported which blocks →	IXICA Communications Inc.	812H	Ile-Perrot	—
2021-05-04	505-478	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	FARMINGTON	NM
2021-05-04	505-481	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	GALLUP	NM
2021-05-04	539-737	0–9 XXXall 10 · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	WILBURTON	OK
2021-05-04	539-895	0–9 XXXall 10 · 3 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	TULSA	OK
2021-05-04	561-607	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	BOCA RATON	FL
2021-05-04	564-210	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	BREMERTON	WA
2021-05-04	579-565	not yet reported which blocks →	ISP Telecom Inc.	4727	St-Calixte-de-Kilkenny	—
2021-05-04	579-566	not yet reported which blocks →	ISP Telecom Inc.	4727	St-Hippolyte	—
2021-05-04	579-567	not yet reported which blocks →	ISP Telecom Inc.	4727	St-Lin	—
2021-05-04	618-682	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CENTRALIA	IL
2021-05-04	620-460	0XXX7XXX8XXX9XXX · 3 holders which blocks →	METROPCS, INC.	5562	TYRO	KS
2021-05-04	667-318	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MD	071F	COCKEYSVL	MD
2021-05-04	681-373	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	HNTNGTNZN1	WV
2021-05-04	708-809	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC	224C	MONEE	IL
2021-05-04	725-895	0–9 XXXall 10 · 2 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	LAS VEGAS	NV

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.