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
2020-06-08	260-666	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	FRACTEL, LLC	965H	MONROEVL	IN
2020-06-08	332-231	not yet reported which blocks →	SHELCOMM	0051	NWYRCYZN01	NY
2020-06-08	432-285	0XXX4XXX · 2 holders which blocks →	1ST POINT COMMUNICATIONS, LLC	489J	MIDLAND	TX
2020-06-08	469-839	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	DALLAS	TX
2020-06-08	708-766	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	FOREST	IL
2020-06-08	872-265	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CHICGOZN10	IL
2020-06-08	907-207	1XXX2XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	BETHEL	AK
2020-06-08	915-268	0–9 XXXall 10 · 3 holders which blocks →	CSC WIRELESS, LLC	425J	EL PASO	TX
2020-06-05	234-275	0–9 XXXall 10 · 2 holders which blocks →	CSC WIRELESS, LLC	425J	YOUNGSTOWN	OH
2020-06-05	360-564	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - WA	483E	POULSBO	WA
2020-06-05	364-203	0–9 XXXall 10 · 4 holders which blocks →	CSC WIRELESS, LLC	425J	BOWLNGGREN	KY
2020-06-05	424-688	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	FRACTEL, LLC	965H	LOMITA	CA
2020-06-05	442-732	0XXX1XXX2XXX5XXX7XXX · 3 holders which blocks →	FRACTEL, LLC	965H	SANDY VLLY	CA
2020-06-05	502-677	0–9 XXXall 10 · 3 holders which blocks →	CSC WIRELESS, LLC	425J	LOUISVILLE	KY
2020-06-05	520-475	0–9 XXXall 10 · 5 holders which blocks →	CSC WIRELESS, LLC	425J	TUCSON	AZ
2020-06-05	608-696	0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SPARTA	WI
2020-06-05	618-575	0XXX1XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - IL	984E	SEFTON	IL
2020-06-05	618-590	0–9 XXXall 10 · 7 holders which blocks →	BANDWIDTH.COM CLEC, LLC - IL	984E	DIX	IL
2020-06-05	618-595	0XXX1XXX5XXX8XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - IL	984E	SHIPMAN	IL
2020-06-05	618-608	0XXX1XXX6XXX8XXX9XXX · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - IL	984E	NEW MINDEN	IL
2020-06-05	618-620	0XXX1XXX2XXX6XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC	224C	HAMBURG	IL
2020-06-05	743-643	0–9 XXXall 10 · 6 holders which blocks →	HD CARRIER LLC	321J	GREENSBORO	NC
2020-06-05	825-532	not yet reported which blocks →	Beanfield Technologies Inc.	575G	Calgary	—
2020-06-05	904-581	0–9 XXXall 10 · 3 holders which blocks →	1ST POINT COMMUNICATIONS, LLC	489J	JACKSONVL	FL
2020-06-05	910-810	0–9 XXXall 10 · 3 holders which blocks →	HD CARRIER LLC	321J	WILMINGTON	NC
2020-06-05	984-884	0–9 XXXall 10 · 4 holders which blocks →	HD CARRIER LLC	321J	RALEIGH	NC
2020-06-04	210-866	0–9 XXXall 10 · 2 holders which blocks →	CSC WIRELESS, LLC	425J	SANANTONIO	TX
2020-06-04	313-955	0–9 XXXwhole prefix which blocks →	METROPCS, INC.	5562	DETROITZN2	MI
2020-06-04	352-829	0–9 XXXall 10 · 4 holders which blocks →	ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND	7857	LADY LAKE	FL
2020-06-04	409-257	0–9 XXXall 10 · 3 holders which blocks →	CSC WIRELESS, LLC	425J	BEAUMONT	TX
2020-06-04	479-388	0–9 XXXall 10 · 3 holders which blocks →	CSC WIRELESS, LLC	425J	FORT SMITH	AR
2020-06-04	505-744	2XXX3XXX4XXX5XXX6XXX7XXX · 5 holders which blocks →	FRACTEL, LLC	965H	RAMAH	NM
2020-06-04	531-246	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SUPERIOR	NE
2020-06-04	581-945	not yet reported which blocks →	TELUS Quebec	2243	Lambton	—
2020-06-04	581-946	not yet reported which blocks →	TELUS Quebec	2243	Courcelles	—
2020-06-04	720-680	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	LONGMONT	CO
2020-06-04	850-886	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	YONGSTFNTN	FL
2020-06-04	940-358	2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks →	CSC WIRELESS, LLC	425J	WICHITAFLS	TX
2020-06-04	956-654	2XXX3XXX6XXX7XXX · 3 holders which blocks →	CSC WIRELESS, LLC	425J	HARLINGEN	TX
2020-06-03	228-269	0–9 XXXall 10 · 3 holders which blocks →	CSC WIRELESS, LLC	425J	BILOXI	MS
2020-06-03	251-326	0–9 XXXwhole prefix which blocks →	LEVEL 3 COMMUNICATIONS, LLC - AL	5255	MOBILE	AL
2020-06-03	475-272	0–9 XXXall 10 · 5 holders which blocks →	CABLEVISION LIGHTPATH, INC. - CT	4950	FAIRFIELD	CT
2020-06-03	505-622	1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	PECOS	NM
2020-06-03	505-677	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	ALBUQURQUE	NM
2020-06-03	505-758	0XXX1XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	FRACTEL, LLC	965H	PINE HILL	NM
2020-06-03	531-245	0XXX2XXX3XXX4XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HARVARD	NE
2020-06-03	575-766	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	FRACTEL, LLC	965H	EUNICE	NM
2020-06-03	661-788	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	BKFD SOUTH	CA
2020-06-03	786-386	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - FL	937C	NORTH DADE	FL
2020-06-03	902-355	not yet reported which blocks →	IXICA Communications Inc.	812H	Bridgewater	—

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.