Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026

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, all time — NPA 952

QWEST CORPORATION 155

ONVOY, LLC - MN 23

AERIAL COMMUNICATIONS, INC. 18

FRONTIER COMMUNICATIONS OF MINNESOTA, INC. 17

MCIMETRO ACCESS TRANSMISSION SERVICES LLC 15

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
—	952-277	9XXX which blocks →	PAETEC ITEL, LLC	829J	TWINCITIES	MN
—	952-278	not yet reported which blocks →	PAETEC ITEL, LLC	829J	TWINCITIES	MN
—	952-279	0XXX3XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	TWINCITIES	MN
—	952-283	0–9 XXXall 10 · 5 holders which blocks →	MCC TELEPHONY LLC	593K	TWINCITIES	MN
—	952-285	not yet reported which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-290	1XXX2XXX6XXX7XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	NEW PRAGUE	MN
—	952-292	none assigned yet which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TWINCITIES	MN
—	952-294	not yet reported which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-297	0–9 XXXall 10 · 4 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TWINCITIES	MN
—	952-303	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - MN	184D	TWINCITIES	MN
—	952-311	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MN
—	952-314	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	TWINCITIES	MN
—	952-322	0XXX7XXX9XXX · 3 holders which blocks →	FRONTIER COMMUNICATIONS OF MINNESOTA, INC.	1367	TWINCITIES	MN
—	952-324	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	AT&T - LOCAL	7421	TWINCITIES	MN
—	952-345	not yet reported which blocks →	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM	4139	TWINCITIES	MN
—	952-346	not yet reported which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-351	8XXX9XXX which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-352	not yet reported which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-353	0XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	TWINCITIES	MN
—	952-356	1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	TWINCITIES	MN
—	952-358	0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	TWINCITIES	MN
—	952-361	not yet reported which blocks →	CENTURYLINK OF MINNESOTA, INC.	1456	TWINCITIES	MN
—	952-367	2XXX4XXX6XXX7XXX9XXX · 3 holders which blocks →	AT&T - LOCAL	7421	TWINCITIES	MN
—	952-368	not yet reported which blocks →	CENTURYLINK OF MINNESOTA, INC.	1456	TWINCITIES	MN
—	952-374	5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-377	2XXX8XXX · 2 holders which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-378	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	TWINCITIES	MN
—	952-380	6XXX7XXX8XXX which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-381	1XXX2XXX4XXX5XXX7XXX9XXX · 3 holders which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-392	not yet reported which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MN	5256	TWINCITIES	MN
—	952-393	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	AERIAL COMMUNICATIONS, INC.	6701	TWINCITIES	MN
—	952-394	not yet reported which blocks →	SPOK, INC.	6630	TWINCITIES	MN
—	952-400	not yet reported which blocks →	MCIMETRO ACCESS TRANSMISSION SERVICES LLC	7229	TWINCITIES	MN
—	952-401	not yet reported which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-402	not yet reported which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-403	not yet reported which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-404	not yet reported which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-405	0XXX2XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-406	0XXX1XXX2XXX8XXX9XXX · 3 holders which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-411	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MN
—	952-412	0–9 XXXwhole prefix which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	TWINCITIES	MN
—	952-417	6XXX which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-423	0XXX8XXX · 2 holders which blocks →	FRONTIER COMMUNICATIONS OF MINNESOTA, INC.	1367	TWINCITIES	MN
—	952-426	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	COMCAST IP PHONE, LLC	318J	TWINCITIES	MN
—	952-430	not yet reported which blocks →	QWEST CORPORATION	9631	TWINCITIES	MN
—	952-431	not yet reported which blocks →	FRONTIER COMMUNICATIONS OF MINNESOTA, INC.	1367	TWINCITIES	MN
—	952-432	not yet reported which blocks →	FRONTIER COMMUNICATIONS OF MINNESOTA, INC.	1367	TWINCITIES	MN
—	952-435	not yet reported which blocks →	FRONTIER COMMUNICATIONS OF MINNESOTA, INC.	1367	TWINCITIES	MN
—	952-440	not yet reported which blocks →	SCOTT RICE TEL. CO. DBA INTEGRA TELECOM	1479	TWINCITIES	MN
—	952-442	not yet reported which blocks →	CENTURYLINK OF MINNESOTA, INC.	1456	TWINCITIES	MN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.