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
2021-04-02	520-504	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	SIERRAVIST	AZ
2021-04-02	559-603	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7145	FRESNO	CA
2021-04-02	563-867	0–9 XXXall 10 · 2 holders which blocks →	COMMIO, LLC	939H	DAVENPORT	IA
2021-04-02	585-605	0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	FILLMORE	NY
2021-04-02	585-745	0–9 XXXall 10 · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ALBION	NY
2021-04-02	585-858	0XXX1XXX2XXX3XXX5XXX6XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BELFAST	NY
2021-04-02	585-875	0XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CUBA	NY
2021-04-02	585-885	2XXX3XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ELBA	NY
2021-04-02	618-680	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	7136	O FALLON	IL
2021-04-02	618-685	0–9 XXXall 10 · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	7136	EDWARDSVL	IL
2021-04-02	618-902	0–9 XXXall 10 · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	OLNEY	IL
2021-04-02	680-660	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CLINTON	NY
2021-04-02	680-780	0–9 XXXall 10 · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CENTRAL SQ	NY
2021-04-02	680-867	0–9 XXXall 10 · 4 holders which blocks →	COMMIO, LLC	939H	SYRACUSE	NY
2021-04-02	681-837	0–9 XXXall 10 · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	ROCK CAVE	WV
2021-04-02	689-234	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	KISSIMMEE	FL
2021-04-02	689-788	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	GENEVA	FL
2021-04-02	701-970	0–9 XXXall 10 · 5 holders which blocks →	IP HORIZON LLC	515J	FARGO	ND
2021-04-02	712-405	1XXX which blocks →	MCC TELEPHONY OF IOWA, LLC - IA	751F	KIRON	IA
2021-04-02	712-710	0–9 XXXall 10 · 4 holders which blocks →	COMMIO, LLC	939H	SIOUX CITY	IA
2021-04-02	716-506	0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	FORESTVL	NY
2021-04-02	716-552	2XXX3XXX5XXX6XXX7XXX · 2 holders which blocks →	ONVOY SPECTRUM, LLC	624H	ELLICOTTVL	NY
2021-04-02	716-669	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CLARENCE	NY
2021-04-02	716-719	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	BARKER	NY
2021-04-02	716-779	1XXX2XXX3XXX4XXX6XXX7XXX · 4 holders which blocks →	ONVOY SPECTRUM, LLC	624H	CATTARAGUS	NY
2021-04-02	734-599	5XXX9XXX · 2 holders which blocks →	FRACTEL, LLC	965H	LOSTPNNSUL	MI
2021-04-02	734-877	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	WAYNE	MI
2021-04-02	734-933	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	WYANDOTTE	MI
2021-04-02	743-730	0XXX1XXX2XXX3XXX4XXX5XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - NC	638E	RURAL HALL	NC
2021-04-02	803-986	0–9 XXXall 10 · 7 holders which blocks →	TELNYX LLC	073H	CHPNLTLMTS	SC
2021-04-02	810-799	1XXX2XXX6XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	GRANDBLANC	MI
2021-04-02	838-235	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks →	PEERING HUB, INC. - NY	818H	LEXINGTON	NY
2021-04-02	838-236	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks →	PEERING HUB, INC. - NY	818H	RICHMONDVL	NY
2021-04-02	838-237	0XXX1XXX2XXX7XXX8XXX9XXX · 6 holders which blocks →	PEERING HUB, INC. - NY	818H	TICONDROGA	NY
2021-04-02	838-239	0XXX which blocks →	PEERING HUB, INC. - NY	818H	TRIBESHILL	NY
2021-04-02	838-240	0–9 XXXall 10 · 7 holders which blocks →	PEERING HUB, INC. - NY	818H	TROY	NY
2021-04-02	838-241	0XXX7XXX · 2 holders which blocks →	PEERING HUB, INC. - NY	818H	W LEBANON	NY
2021-04-02	838-242	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 4 holders which blocks →	PEERING HUB, INC. - NY	818H	WARRENSBG	NY
2021-04-02	838-243	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks →	PEERING HUB, INC. - NY	818H	WESTERLO	NY
2021-04-02	839-272	0XXX1XXX2XXX3XXX7XXX8XXX9XXX · 6 holders which blocks →	TON80 COMMUNICATIONS, LLC	516J	BLACKVILLE	SC
2021-04-02	845-861	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	MONTICELLO	NY
2021-04-02	857-675	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - MA	892D	ROXBURY	MA
2021-04-02	857-678	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC - MA	892D	BELMONT	MA
2021-04-02	929-579	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - NY	997E	NWYRCYZN03	NY
2021-04-02	929-580	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NY	6622	NWYRCYZN07	NY
2021-04-02	934-386	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	YAPHANK	NY
2021-04-02	934-432	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	CENTRAISLP	NY
2021-04-02	934-699	0XXX1XXX2XXX3XXX4XXX6XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	SOUTHAMPTN	NY
2021-04-02	934-786	0XXX1XXX2XXX3XXX4XXX7XXX8XXX9XXX · 3 holders which blocks →	FRACTEL, LLC	965H	NORTHPORT	NY
2021-04-02	934-942	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	SOUTHOLD	NY

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.