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
2016-04-21	782-434	not yet reported which blocks →	Bragg Communications Inc.	4878	Canso	—
2016-04-21	782-436	not yet reported which blocks →	Bragg Communications Inc.	4878	Goldboro	—
2016-04-21	782-438	not yet reported which blocks →	Bragg Communications Inc.	4878	Sherbrooke	—
2016-04-21	782-439	not yet reported which blocks →	Bragg Communications Inc.	4878	River John	—
2016-04-21	816-642	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	KANSASCITY	MO
2016-04-21	928-326	0–9 XXXall 10 · 4 holders which blocks →	SMITH BAGLEY INC. DBA CELLULAR ONE OF NE ARIZONA	4146	FLAGSTAFF	AZ
2016-04-21	959-444	0–9 XXXall 10 · 3 holders which blocks →	PEERLESS NETWORK OF CONNECTICUT, LLC - CT	539F	WILLIMNTIC	CT
2016-04-21	985-251	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - LA	749E	RACELAND	LA
2016-04-21	985-315	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	ONVOY, LLC - LA	749E	LOCKPORT	LA
2016-04-21	985-615	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - LA	749E	FOLSOM	LA
2016-04-21	985-616	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - LA	749E	INDEPNDNCE	LA
2016-04-21	985-617	1XXX2XXX3XXX6XXX7XXX8XXX · 2 holders which blocks →	ONVOY, LLC - LA	749E	GIBSON	LA
2016-04-20	224-724	0–9 XXXall 10 · 6 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	7136	SKOKIE	IL
2016-04-20	248-500	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MILFDWH LK	MI
2016-04-20	346-262	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	HOUSTON	TX
2016-04-20	346-352	0–9 XXXall 10 · 4 holders which blocks →	AT&T ENTERPRISES, LLC	516C	HOUSTON	TX
2016-04-20	385-258	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - UT	3231	SALT LAKE	UT
2016-04-20	469-466	0–9 XXXall 10 · 6 holders which blocks →	ONVOY, LLC - TX	903C	DALLAS	TX
2016-04-20	470-305	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ATLANTA	GA
2016-04-20	603-405	0XXX1XXX2XXX6XXX8XXX · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - NH	8299	SOMERSWTH	NH
2016-04-20	956-540	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MCALLEN	TX
2016-04-19	346-238	0–9 XXXwhole prefix which blocks →	LEVEL 3 OF TELECOM OF TEXAS, LLC - TX	7074	HOUSTON	TX
2016-04-19	608-898	0–9 XXXall 10 · 7 holders which blocks →	METROPCS, INC.	5562	JANESVILLE	WI
2016-04-19	609-302	0–9 XXXall 10 · 5 holders which blocks →	VERIZON NEW JERSEY, INC.	9206	LAWRENCEVL	NJ
2016-04-19	978-438	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	PEABODY	MA
2016-04-18	231-252	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MI	991E	TRAVERSECY	MI
2016-04-18	825-681	not yet reported which blocks →	Distributel	081E	Iron Springs	—
2016-04-18	825-682	not yet reported which blocks →	Distributel	081E	Magrath	—
2016-04-18	825-683	not yet reported which blocks →	Distributel	081E	Manyberries	—
2016-04-18	825-684	not yet reported which blocks →	Distributel	081E	Milk River	—
2016-04-18	825-685	not yet reported which blocks →	Distributel	081E	New Dayton	—
2016-04-18	825-686	not yet reported which blocks →	Distributel	081E	Nobleford	—
2016-04-18	825-687	not yet reported which blocks →	Distributel	081E	Picture Butte	—
2016-04-18	825-688	not yet reported which blocks →	Distributel	081E	Pincher Creek	—
2016-04-18	825-689	not yet reported which blocks →	Distributel	081E	Raymond	—
2016-04-18	825-690	not yet reported which blocks →	Distributel	081E	Stand Off	—
2016-04-18	825-691	not yet reported which blocks →	Distributel	081E	Stirling	—
2016-04-18	825-692	not yet reported which blocks →	Distributel	081E	Taber	—
2016-04-18	825-693	not yet reported which blocks →	Distributel	081E	Vauxhall	—
2016-04-18	825-694	not yet reported which blocks →	Distributel	081E	Warner	—
2016-04-18	825-695	not yet reported which blocks →	Distributel	081E	Waterton Park	—
2016-04-18	825-696	not yet reported which blocks →	Distributel	081E	Wrentham	—
2016-04-15	313-314	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MI	991E	DETROITZN3	MI
2016-04-15	313-636	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MI	991E	DETROITZN4	MI
2016-04-15	469-796	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX	6506	MCKINNEY	TX
2016-04-15	619-329	0–9 XXXall 10 · 2 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7147	SNDG SNDG	CA
2016-04-15	619-343	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	SNDG SNDG	CA
2016-04-14	214-903	0–9 XXXall 10 · 6 holders which blocks →	T-MOBILE USA, INC.	6529	WAXAHACHIE	TX
2016-04-14	306-271	not yet reported which blocks →	Distributel	081E	Regina	—
2016-04-14	313-284	0–9 XXXall 10 · 2 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MI	991E	DETROITZN2	MI

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.