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
2020-04-28	762-336	0XXX1XXX3XXX4XXX5XXX6XXX8XXX · 5 holders which blocks →	FRACTEL, LLC	965H	MENLO	GA
2020-04-28	762-758	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	CALHOUN	GA
2020-04-28	762-766	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	COLUMBUS	GA
2020-04-28	762-842	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	LAGRANGE	GA
2020-04-28	762-946	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	WATKINSVL	GA
2020-04-28	807-235	not yet reported which blocks →	TELUS Integrated Communications	2782	Thunder Bay	—
2020-04-28	813-680	0–9 XXXall 10 · 3 holders which blocks →	BANDWIDTH.COM CLEC, LLC - FL	982E	ZEPHYRHILS	FL
2020-04-28	912-766	0–9 XXXall 10 · 6 holders which blocks →	FRACTEL, LLC	965H	JEKYLL IS	GA
2020-04-28	979-328	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ANGLETON	TX
2020-04-27	213-521	0–9 XXXall 10 · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - CA	7139	LSAN DA 14	CA
2020-04-27	224-327	0–9 XXXall 10 · 5 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - IL	7136	MUNDELEIN	IL
2020-04-27	251-323	0–9 XXXwhole prefix which blocks →	NEW CINGULAR WIRELESS PCS, LLC - GA	6214	MOBILE	AL
2020-04-27	272-238	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA	6392	SUNBURY	PA
2020-04-27	365-975	not yet reported which blocks →	TELUS Integrated Communications	2782	Streetsville	—
2020-04-27	437-782	not yet reported which blocks →	TELUS Integrated Communications	2782	Toronto	—
2020-04-27	469-806	0–9 XXXall 10 · 3 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - TX	7148	DALLAS	TX
2020-04-27	470-677	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	ATLANTA	GA
2020-04-27	470-977	0–9 XXXall 10 · 3 holders which blocks →	FRACTEL, LLC	965H	ATLANTA NE	GA
2020-04-27	501-426	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR	6805	CONWAY	AR
2020-04-27	515-877	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	FRACTEL, LLC	965H	POLK CITY	IA
2020-04-27	515-946	0XXX3XXX4XXX5XXX7XXX9XXX · 5 holders which blocks →	FRACTEL, LLC	965H	ELKHART	IA
2020-04-27	762-356	0–9 XXXall 10 · 5 holders which blocks →	FRACTEL, LLC	965H	ATHENS	GA
2020-04-27	920-669	0XXX1XXX3XXX4XXX6XXX8XXX9XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	MAYVILLE	WI
2020-04-24	209-673	0–9 XXXall 10 · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	MANTECA	CA
2020-04-24	226-564	not yet reported which blocks →	Fibernetics Corporation	464D	London	—
2020-04-24	332-334	0–9 XXXwhole prefix which blocks →	ONVOY, LLC- NY	384C	NWYRCYZN01	NY
2020-04-24	343-293	not yet reported which blocks →	Fibernetics Corporation	464D	Kingston	—
2020-04-24	437-780	not yet reported which blocks →	TELUS Integrated Communications	2782	Toronto	—
2020-04-24	437-781	not yet reported which blocks →	TELUS Integrated Communications	2782	Toronto	—
2020-04-24	442-317	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	ESCONDIDO	CA
2020-04-24	442-339	0–9 XXXall 10 · 4 holders which blocks →	METROPCS, INC.	5562	OCSD CRLS	CA
2020-04-24	534-999	0XXX3XXX5XXX8XXX9XXX · 4 holders which blocks →	FRACTEL, LLC	965H	STETSONVL	WI
2020-04-24	660-310	0–9 XXXall 10 · 7 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - MO	7218	SEDALIA	MO
2020-04-24	715-932	7XXX which blocks →	FRACTEL, LLC	965H	ROSHOLT	WI
2020-04-24	916-659	0–9 XXXall 10 · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	SO PLACER	CA
2020-04-23	270-323	0XXX1XXX6XXX7XXX8XXX · 4 holders which blocks →	TELEPORT COMMUNICATIONS AMERICA, LLC - KY	8406	MARION	KY
2020-04-23	438-770	not yet reported which blocks →	Fibernetics Corporation	464D	Montreal	—
2020-04-23	442-529	0–9 XXXall 10 · 4 holders which blocks →	FRACTEL, LLC	965H	INDIO	CA
2020-04-23	469-807	0–9 XXXall 10 · 5 holders which blocks →	BANDWIDTH.COM CLEC, LLC - TX	004F	RED OAK	TX
2020-04-23	480-647	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ	6572	PHOENIX	AZ
2020-04-23	534-222	0XXX2XXX4XXX6XXX · 3 holders which blocks →	FRACTEL, LLC	965H	AMHERST	WI
2020-04-23	534-333	0XXX1XXX2XXX3XXX4XXX7XXX9XXX · 6 holders which blocks →	FRACTEL, LLC	965H	CHILI	WI
2020-04-23	534-666	0XXX1XXX2XXX3XXX6XXX7XXX · 5 holders which blocks →	FRACTEL, LLC	965H	GREENWOOD	WI
2020-04-23	689-244	0–9 XXXall 10 · 3 holders which blocks →	BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL	9417	ORLANDO	FL
2020-04-22	206-594	0–9 XXXall 10 · 2 holders which blocks →	NUSO, LLC	478J	SEATTLE	WA
2020-04-22	272-239	0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 8 holders which blocks →	BANDWIDTH.COM CLEC, LLC - PA	002F	WALENPAPCK	PA
2020-04-22	313-385	0–9 XXXall 10 · 4 holders which blocks →	NUSO, LLC	478J	DETROITZN1	MI
2020-04-21	234-271	0–9 XXXall 10 · 4 holders which blocks →	INTRADO COMMUNICATIONS, LLC	9557	AKRON	OH
2020-04-21	407-974	0–9 XXXall 10 · 3 holders which blocks →	INTRADO COMMUNICATIONS, LLC	813C	ORLANDO	FL
2020-04-21	430-270	0XXX1XXX3XXX4XXX5XXX6XXX7XXX9XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - TX	6114	WHITESBORO	TX

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.