Recent prefix assignments

347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026

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 28

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 23

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

Quick find in this area code:

Recent NPA-NXX prefix assignments
Assigned	NPA-NXX	Thousands-blocks taken (last-4 opening)	Code holder	OCN	Rate center	State
2020-08-27	208-517	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	478J	COTTONWOOD	ID
2020-08-27	209-693	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	LODI	CA
2020-08-27	224-335	0XXX1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	STRATUS NETWORKS	495J	ANTIOCH	IL
2020-08-27	226-756	not yet reported which blocks →	Iristel Inc.	154E	Listowel	—
2020-08-27	239-342	0–9 XXXall 10 · 5 holders which blocks →	NUSO, LLC	478J	FORT MYERS	FL
2020-08-27	240-574	0–9 XXXall 10 · 6 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	FRIENDSVL	MD
2020-08-27	252-691	0–9 XXXall 10 · 6 holders which blocks →	NUSO, LLC	478J	KNOTTS IS	NC
2020-08-27	360-634	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	OLYMPIA	WA
2020-08-27	365-725	not yet reported which blocks →	Iristel Inc.	154E	Thornhill	—
2020-08-27	365-735	not yet reported which blocks →	Iristel Inc.	154E	Thornhill	—
2020-08-27	414-786	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	MILWAUKZN4	WI
2020-08-27	414-946	0–9 XXXall 10 · 7 holders which blocks →	FRACTEL, LLC	965H	MILWAUKZN5	WI
2020-08-27	425-371	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	BOTHELL	WA
2020-08-27	437-447	not yet reported which blocks →	Iristel Inc.	154E	Toronto	—
2020-08-27	437-500	not yet reported which blocks →	Iristel Inc.	154E	Toronto	—
2020-08-27	437-600	not yet reported which blocks →	Iristel Inc.	154E	Toronto	—
2020-08-27	437-747	not yet reported which blocks →	Iristel Inc.	154E	Toronto	—
2020-08-27	437-900	not yet reported which blocks →	Iristel Inc.	154E	Toronto	—
2020-08-27	469-876	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	ENNIS	TX
2020-08-27	502-755	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	LA GRANGE	KY
2020-08-27	530-382	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	AUBN MAIN	CA
2020-08-27	561-528	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	DELRAY BCH	FL
2020-08-27	628-682	0–9 XXXall 10 · 8 holders which blocks →	ONVOY, LLC - CA	649C	NOVATO	CA
2020-08-27	662-856	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	478J	MEMPHIS	MS
2020-08-27	689-223	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	478J	ORLANDO	FL
2020-08-27	716-305	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	478J	BUFFALO	NY
2020-08-27	720-807	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - CO	026D	DENVER	CO
2020-08-27	737-274	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	BASTROP	TX
2020-08-27	743-235	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	478J	GREENSBORO	NC
2020-08-27	774-433	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	BARNSTABLE	MA
2020-08-27	845-785	1XXX which blocks →	NUSO, LLC	478J	POUGHKEPSI	NY
2020-08-27	859-465	0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	MILLERBURG	KY
2020-08-27	901-554	0–9 XXXall 10 · 5 holders which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2020-08-27	904-648	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	478J	JACKSONVL	FL
2020-08-27	908-417	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS, INC. - NJ	6623	BERNARDSVL	NJ
2020-08-27	909-846	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	ARROWHEAD	CA
2020-08-27	980-443	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	478J	CHARLOTTE	NC
2020-08-27	984-263	0–9 XXXall 10 · 3 holders which blocks →	NUSO, LLC	478J	RALEIGH	NC
2020-08-26	223-237	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	478J	HARISBGZN1	PA
2020-08-26	225-449	0–9 XXXwhole prefix which blocks →	VOICESTREAM GSM I, LLC	150C	GONZALES	LA
2020-08-26	251-329	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MOBILE	AL
2020-08-26	539-239	0–9 XXXall 10 · 5 holders which blocks →	T-MOBILE USA, INC.	6529	MUSKOGEE	OK
2020-08-26	580-360	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LAWTON	OK
2020-08-26	659-204	0–9 XXXall 10 · 6 holders which blocks →	POWERTEL BIRMINGHAM LICENSES, INC.	7475	BIRMINGHAM	AL
2020-08-26	659-206	0–9 XXXall 10 · 2 holders which blocks →	POWERTEL BIRMINGHAM LICENSES, INC.	7475	SPRINGVL	AL
2020-08-26	701-407	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	MLGC, L.L.C. - ND	287G	LEONARD	ND
2020-08-26	719-936	0–9 XXXall 10 · 6 holders which blocks →	N.E. COLORADO CELLULAR, INC.	6874	ALAMOSA	CO
2020-08-26	757-895	0–9 XXXall 10 · 4 holders which blocks →	TWILIO INTERNATIONAL, INC.	506J	NRFOLKZON1	VA
2020-08-26	854-212	0–9 XXXall 10 · 2 holders which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	BEAUFORT	SC
2020-08-26	864-685	0–9 XXXall 10 · 3 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	ANDERSON	SC

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.