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
2013-04-26	778-897	not yet reported which blocks →	Comwave Networks	160G	Vancouver	—
2013-04-26	843-481	0–9 XXXall 10 · 5 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	KINGSTREE	SC
2013-04-26	903-688	not yet reported which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	FROST	TX
2013-04-26	913-257	0–9 XXXall 10 · 3 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	KANSASCITY	KS
2013-04-26	931-254	0XXX1XXX2XXX3XXX4XXX5XXX6XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN	6673	SPENCER	TN
2013-04-26	940-617	not yet reported which blocks →	CHOICE WIRELESS, LC	3533	WICHITAFLS	TX
2013-04-26	940-620	not yet reported which blocks →	CHOICE WIRELESS, LC	3533	BURKBURNTT	TX
2013-04-26	940-624	not yet reported which blocks →	CHOICE WIRELESS, LC	3533	HENRIETTA	TX
2013-04-26	954-368	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	FTLAUDERDL	FL
2013-04-26	954-544	0–9 XXXall 10 · 2 holders which blocks →	COMCAST IP PHONE, LLC	318J	HOLLYWOOD	FL
2013-04-25	240-467	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	WSHNGTNZN4	MD
2013-04-25	414-595	0–9 XXXwhole prefix which blocks →	T-MOBILE USA, INC.	6529	MILWAUKZN1	WI
2013-04-25	414-865	0–9 XXXall 10 · 2 holders which blocks →	T-MOBILE USA, INC.	6529	MILWAUKZN4	WI
2013-04-25	512-593	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	AUSTIN	TX
2013-04-25	561-557	0–9 XXXall 10 · 2 holders which blocks →	COMCAST IP PHONE, LLC	318J	WPALMBEACH	FL
2013-04-25	587-430	not yet reported which blocks →	Comwave Networks	160G	Calgary	—
2013-04-25	587-477	not yet reported which blocks →	TELUS	8084	Fort McMurray	—
2013-04-25	587-539	not yet reported which blocks →	TELUS	8084	Fort McMurray	—
2013-04-25	587-760	not yet reported which blocks →	Comwave Networks	160G	Edmonton	—
2013-04-25	832-670	0–9 XXXwhole prefix which blocks →	AERIAL COMMUNICATIONS, INC.	6701	HSTNSUBURB	TX
2013-04-25	956-375	0–9 XXXall 10 · 3 holders which blocks →	STPCS JOINT VENTURE, LLC	4290	WESLACO	TX
2013-04-24	423-270	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN	6673	ERWIN	TN
2013-04-24	646-679	0–9 XXXall 10 · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - NY	4006	NWYRCYZN01	NY
2013-04-24	779-226	not yet reported which blocks →	COMCAST IP PHONE, LLC	318J	POLO	IL
2013-04-24	786-448	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2013-04-24	786-451	0–9 XXXwhole prefix which blocks →	OMNIPOINT MIAMI E LICENSE, LLC	6889	MIAMI	FL
2013-04-24	857-269	0–9 XXXall 10 · 3 holders which blocks →	PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA	268F	ROXBURY	MA
2013-04-24	951-376	0–9 XXXall 10 · 4 holders which blocks →	T-MOBILE USA, INC.	6529	ARLINGTON	CA
2013-04-24	971-274	0–9 XXXall 10 · 5 holders which blocks →	CENTURYLINK COMMUNICATIONS, LLC	508J	GRESHAM	OR
2013-04-23	205-582	0–9 XXXall 10 · 5 holders which blocks →	TELEPAK NETWORKS, INC. - AL	947G	BIRMINGHAM	AL
2013-04-23	224-326	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	NORTHBROOK	IL
2013-04-23	234-246	0–9 XXXall 10 · 7 holders which blocks →	PAETEC ITEL, LLC	829J	RICHFIELD	OH
2013-04-23	249-988	not yet reported which blocks →	Fido Solutions Inc.	8820	Parry Sound	—
2013-04-23	302-273	0–9 XXXall 10 · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	NEWARK	DE
2013-04-23	541-699	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	REDMOND	OR
2013-04-23	567-348	0–9 XXXwhole prefix which blocks →	ONVOY, LLC - OH	464C	BOWLNGGREN	OH
2013-04-23	580-500	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	T-MOBILE USA, INC.	6529	CLINTON	OK
2013-04-23	848-232	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	PTPLEASANT	NJ
2013-04-23	857-273	0–9 XXXall 10 · 6 holders which blocks →	COMCAST IP PHONE, LLC	318J	JAMAICA PL	MA
2013-04-22	234-803	0–9 XXXall 10 · 7 holders which blocks →	SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE	735E	BRUNSWICK	OH
2013-04-22	254-294	0–9 XXXall 10 · 4 holders which blocks →	AMA COMM., LLC DBA AMA*TECHTEL COMMUNICATIONS-TX	0132	WACO	TX
2013-04-22	469-803	0–9 XXXall 10 · 3 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	FRISCO	TX
2013-04-22	705-914	not yet reported which blocks →	Bell Mobility	6574	Wawa	—
2013-04-22	786-916	0–9 XXXall 10 · 3 holders which blocks →	COMCAST IP PHONE, LLC	318J	NORTH DADE	FL
2013-04-22	807-323	not yet reported which blocks →	Bell Mobility	6574	Dryden	—
2013-04-22	807-324	not yet reported which blocks →	Bell Mobility	6574	Atikokan	—
2013-04-22	807-863	not yet reported which blocks →	Bell Mobility	6574	Geraldton	—
2013-04-21	248-308	0–9 XXXall 10 · 6 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	NORTHVILLE	MI
2013-04-19	226-939	not yet reported which blocks →	Fido Solutions Inc.	8820	Goderich	—
2013-04-19	226-990	not yet reported which blocks →	Fido Solutions Inc.	8820	Walkerton	—

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.