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
2014-11-22	715-908	4XXX5XXX8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	TOMAHAWK	WI
2014-11-21	307-829	0XXX1XXX2XXX3XXX4XXX5XXX7XXX · 3 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	CHEYENNE	WY
2014-11-21	307-881	0–9 XXXall 10 · 5 holders which blocks →	ADVANCED COMMUNICATIONS TECHNOLOGY, INC. - WY	268A	WHEATLAND	WY
2014-11-21	470-465	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - GA	6116	CLERMONT	GA
2014-11-21	470-722	0–9 XXXall 10 · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - GA	983E	ROOPVILLE	GA
2014-11-21	573-476	0–9 XXXall 10 · 5 holders which blocks →	CHARITON VALLEY COMMUNICATIONS CORPORATION	250A	COLUMBIA	MO
2014-11-21	586-599	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	MT CLEMENS	MI
2014-11-21	587-480	not yet reported which blocks →	TELUS	8084	Calgary	—
2014-11-21	587-481	not yet reported which blocks →	TELUS	8084	Calgary	—
2014-11-21	587-482	not yet reported which blocks →	TELUS	8084	Calgary	—
2014-11-21	587-884	not yet reported which blocks →	ISP Telecom Inc.	4727	Fort McMurray	—
2014-11-21	618-619	0–9 XXXall 10 · 6 holders which blocks →	PAETEC ITEL, LLC	829J	ALTON	IL
2014-11-21	669-266	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - CA	649C	SNJS WEST	CA
2014-11-21	682-313	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	ARLINGTON	TX
2014-11-21	705-921	not yet reported which blocks →	Bell Mobility	6574	Sudbury	—
2014-11-21	720-707	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CO	026D	DENVER	CO
2014-11-21	760-442	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	BRAWLEY	CA
2014-11-21	760-626	0–9 XXXall 10 · 3 holders which blocks →	T-MOBILE USA, INC.	6529	FALLBROOK	CA
2014-11-21	850-816	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	PACE	FL
2014-11-21	909-674	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	REDLANDS	CA
2014-11-21	929-357	0–9 XXXall 10 · 2 holders which blocks →	ONVOY, LLC- NY	384C	NWYRCYZN12	NY
2014-11-21	956-801	0–9 XXXall 10 · 4 holders which blocks →	STPCS JOINT VENTURE, LLC	4290	BROWNSVL	TX
2014-11-20	204-500	not yet reported which blocks →	Iristel Inc.	154E	Winnipeg	—
2014-11-20	226-806	not yet reported which blocks →	Iristel Inc.	154E	Kitchener-Waterloo	—
2014-11-20	262-383	0–9 XXXall 10 · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	RACINE	WI
2014-11-20	312-792	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	CHICGOZN01	IL
2014-11-20	470-292	0–9 XXXall 10 · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	ATLANTA NE	GA
2014-11-20	470-685	0–9 XXXwhole prefix which blocks →	POWERTEL ATLANTA LICENSES, INC.	7473	ATLANTA	GA
2014-11-20	512-766	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	AUSTIN	TX
2014-11-20	612-440	0–9 XXXwhole prefix which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	TWINCITIES	MN
2014-11-20	646-849	0–9 XXXwhole prefix which blocks →	ONVOY, LLC- NY	384C	NWYRCYZN01	NY
2014-11-20	646-921	0–9 XXXwhole prefix which blocks →	ONVOY, LLC- NY	384C	NWYRCYZN01	NY
2014-11-20	646-928	0–9 XXXall 10 · 2 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	NWYRCYZN01	NY
2014-11-20	646-933	0–9 XXXwhole prefix which blocks →	ONVOY, LLC- NY	384C	NWYRCYZN01	NY
2014-11-20	873-500	not yet reported which blocks →	Iristel Inc.	154E	Sherbrooke	—
2014-11-20	901-518	0–9 XXXwhole prefix which blocks →	POWERTEL MEMPHIS LICENSES, INC.	7474	MEMPHIS	TN
2014-11-20	956-601	0–9 XXXall 10 · 3 holders which blocks →	TWC IP ENABLED SERVICES, LLC	793K	PHARR	TX
2014-11-19	321-318	0–9 XXXall 10 · 2 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	ORLANDO	FL
2014-11-19	321-330	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	ORLANDO	FL
2014-11-19	401-414	0–9 XXXall 10 · 4 holders which blocks →	AIRUS, INC. - RI	507H	PROVIDENCE	RI
2014-11-19	502-462	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - KY	4369	OWENTON	KY
2014-11-19	551-237	0–9 XXXall 10 · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	HACKENSACK	NJ
2014-11-19	551-238	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	FAIR LAWN	NJ
2014-11-19	561-570	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	WPALMBEACH	FL
2014-11-19	609-746	0–9 XXXall 10 · 4 holders which blocks →	AIRUS, INC. - NJ	066G	ATLNTIC CY	NJ
2014-11-19	772-208	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL	6502	JENSEN BCH	FL
2014-11-19	774-517	0–9 XXXall 10 · 4 holders which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	BROCKTON	MA
2014-11-19	786-532	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 TELECOM OF FLORIDA, LP - FL	7635	MIAMI	FL
2014-11-19	786-678	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2014-11-19	786-731	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL

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.