Recent prefix assignments

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

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

Rogers Communications Canada Inc. (Wireless) 46

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 28

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
2017-12-21	707-615	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - CA	649C	SANTA ROSA	CA
2017-12-21	720-601	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	DENVER	CO
2017-12-21	825-207	not yet reported which blocks →	TELUS	8084	Calgary	—
2017-12-21	825-212	not yet reported which blocks →	TELUS	8084	High River	—
2017-12-21	825-213	not yet reported which blocks →	TELUS	8084	Fort McMurray	—
2017-12-21	907-417	7XXX which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	6872	NULATO	AK
2017-12-21	907-709	7XXX which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	6872	HUSLIA	AK
2017-12-21	939-200	0–9 XXXall 10 · 3 holders which blocks →	SUNCOM DBA T-MOBILE USA	8645	AGUADILLA	PR
2017-12-21	939-425	0–9 XXXwhole prefix which blocks →	SUNCOM DBA T-MOBILE USA	8645	NARANJITO	PR
2017-12-20	234-238	0–9 XXXall 10 · 3 holders which blocks →	VONAGE AMERICA LLC	197D	AKRON	OH
2017-12-20	236-238	not yet reported which blocks →	Fido Solutions Inc.	5643	Nanaimo	—
2017-12-20	236-428	not yet reported which blocks →	TELUS	8086	New Westminster	—
2017-12-20	236-429	not yet reported which blocks →	TELUS	8086	Vancouver	—
2017-12-20	239-468	0–9 XXXwhole prefix which blocks →	CENTURYLINK OF FLORIDA, INC. (UNITED)	0341	BONITA SPG	FL
2017-12-20	240-576	0–9 XXXall 10 · 3 holders which blocks →	VONAGE AMERICA LLC	197D	HAGERSTOWN	MD
2017-12-20	249-288	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Barrie	—
2017-12-20	256-421	0XXX1XXX · 2 holders which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	GRANT	AL
2017-12-20	336-206	0XXX which blocks →	CHARTER IP ENABLED SERVICES, LLC	792K	BALDWIN	NC
2017-12-20	337-450	0–9 XXXall 10 · 5 holders which blocks →	LAFAYETTE CITY-PARISH CONSOLIDATED GOVERNMENT - LA	9002	YOUNGSVL	LA
2017-12-20	346-290	0–9 XXXall 10 · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	BAMMEL	TX
2017-12-20	346-322	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - TX	903C	BARKER	TX
2017-12-20	361-295	0–9 XXXwhole prefix which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7138	C CHRISTI	TX
2017-12-20	365-688	not yet reported which blocks →	Rogers Communications Canada Inc. (Wireless)	8821	Oshawa	—
2017-12-20	438-851	not yet reported which blocks →	Bell Mobility	6574	Montreal	—
2017-12-20	438-852	not yet reported which blocks →	Bell Mobility	6574	Montreal	—
2017-12-20	469-370	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	MCKINNEY	TX
2017-12-20	470-489	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ATLANTA NE	GA
2017-12-20	520-771	0–9 XXXall 10 · 4 holders which blocks →	VONAGE AMERICA LLC	197D	TUCSON	AZ
2017-12-20	647-246	not yet reported which blocks →	Bell Mobility	6574	Toronto	—
2017-12-20	647-279	not yet reported which blocks →	Bell Mobility	6574	Toronto	—
2017-12-20	647-616	not yet reported which blocks →	Bell Mobility	6574	Toronto	—
2017-12-20	682-265	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	ARLINGTON	TX
2017-12-20	719-755	0–9 XXXall 10 · 8 holders which blocks →	VONAGE AMERICA LLC	197D	COLORDOSPG	CO
2017-12-20	757-991	0–9 XXXall 10 · 5 holders which blocks →	VONAGE AMERICA LLC	197D	NRFOLKZON1	VA
2017-12-20	772-227	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - FL	8300	FORTPIERCE	FL
2017-12-20	781-445	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA	6387	NEEDHAM	MA
2017-12-20	862-315	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NEWARK	NJ
2017-12-20	862-316	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	NEWARK	NJ
2017-12-20	873-563	not yet reported which blocks →	Videotron Ltd.	8306	Labelle	—
2017-12-20	873-564	not yet reported which blocks →	Videotron Ltd.	8306	L'Annonciation	—
2017-12-20	873-565	not yet reported which blocks →	Videotron Ltd.	8306	Nominingue	—
2017-12-20	907-309	0XXX1XXX · 2 holders which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	7785	CHUGIAK	AK
2017-12-20	907-421	0XXX7XXX which blocks →	GCI COMMUNICATION CORP. DBA GENERAL COMMUNICATION	6872	KING COVE	AK
2017-12-20	910-965	0–9 XXXall 10 · 6 holders which blocks →	VONAGE AMERICA LLC	197D	FAYETTEVL	NC
2017-12-20	915-232	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	EL PASO	TX
2017-12-20	920-677	0–9 XXXall 10 · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	NEWFRANKEN	WI
2017-12-20	939-419	0–9 XXXwhole prefix which blocks →	SUNCOM DBA T-MOBILE USA	8645	CAYEY	PR
2017-12-20	939-775	0–9 XXXwhole prefix which blocks →	SUNCOM DBA T-MOBILE USA	8645	TRUJILLOAL	PR
2017-12-20	989-900	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLCV - MI	543C	SAGINAW	MI
2017-12-19	331-238	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	7136	DOWNERSGRV	IL

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.