Recent prefix assignments

2 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, last 30 days — NPA 507

U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1

8X8, INC. 1

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
—	507-595	4XXX5XXX6XXX · 2 holders which blocks →	FRONTIER COMMUNICATIONS OF MINNESOTA, INC.	1367	KILKENNY	MN
—	507-597	not yet reported which blocks →	ALLIANCE COMM. COOPERATIVE, INC. (SPLIT ROCK)	1657	EGARRETSON	MN
—	507-598	1XXX8XXX9XXX · 2 holders which blocks →	ONVOY, LLC - MN	184D	LEROY	MN
—	507-609	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	GAYLORD	MN
—	507-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MN
—	507-615	0–9 XXXall 10 · 7 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WINONA	MN
—	507-623	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - MN	184D	KENYON	MN
—	507-625	not yet reported which blocks →	CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN	1427	MANKATO	MN
—	507-628	0XXX8XXX which blocks →	CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK	1445	JEFFERS	MN
—	507-629	0XXX1XXX2XXX6XXX7XXX · 3 holders which blocks →	QWEST CORPORATION	9631	TRACY	MN
—	507-630	none assigned yet which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	ST JAMES	MN
—	507-631	not yet reported which blocks →	CLARITY TELECOM, LLC DBA BLUEPEAK	4768	EDGERTON	MN
—	507-632	0XXX2XXX3XXX5XXX6XXX7XXX8XXX · 3 holders which blocks →	FRONTIER COMMUNICATIONS OF MINNESOTA, INC.	1367	CEYLON	MN
—	507-634	not yet reported which blocks →	KASSON & MANTORVILLE TEL. CO.	1412	KASSON	MN
—	507-635	not yet reported which blocks →	KASSON & MANTORVILLE TEL. CO.	1412	MANTORVL	MN
—	507-637	0XXX1XXX7XXX · 3 holders which blocks →	QWEST CORPORATION	9631	REDWOODFLS	MN
—	507-639	0XXX4XXX5XXX8XXX · 3 holders which blocks →	FRONTIER COMMUNICATIONS OF MINNESOTA, INC.	1367	TRIMONT	MN
—	507-640	none assigned yet which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	RED DEL	MN
—	507-641	not yet reported which blocks →	REDWOOD COUNTY TEL. CO.	1472	RED DEL	MN
—	507-642	not yet reported which blocks →	CHRISTENSEN COMMUNICATIONS COMPANY	1425	MADELIA	MN
—	507-643	not yet reported which blocks →	ACE TEL. ASSN. - MN	1345	DAKOTA	MN
—	507-644	not yet reported which blocks →	REDWOOD COUNTY TEL. CO.	1472	RED DEL	MN
—	507-645	not yet reported which blocks →	QWEST CORPORATION	9631	NORTHFIELD	MN
—	507-646	0XXX2XXX3XXX4XXX9XXX · 4 holders which blocks →	ONVOY, LLC - MN	184D	NORTHFIELD	MN
—	507-647	not yet reported which blocks →	WINTHROP TEL. CO.	1508	WINTHROP	MN
—	507-648	not yet reported which blocks →	WESTERN TEL. CO.	1502	SANBORN	MN
—	507-649	3XXX4XXX7XXX8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	NORTHFIELD	MN
—	507-650	1XXX3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks →	ONVOY, LLC - MN	184D	NORTHFIELD	MN
—	507-653	none assigned yet which blocks →	CANNON VALLEY TELECOM, INC.	1440	BRICELYN	MN
—	507-657	none assigned yet which blocks →	ACE TEL. ASSN. - MN	1345	OSTRANDER	MN
—	507-658	not yet reported which blocks →	WOODSTOCK TEL. CO.	1510	RUTHTON	MN
—	507-661	none assigned yet which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WATERVILLE	MN
—	507-662	2XXX3XXX4XXX · 2 holders which blocks →	FRONTIER COMMUNICATIONS OF MINNESOTA, INC.	1367	LAKEFIELD	MN
—	507-663	not yet reported which blocks →	QWEST CORPORATION	9631	NORTHFIELD	MN
—	507-664	1XXX6XXX · 2 holders which blocks →	QWEST CORPORATION	9631	NORTHFIELD	MN
—	507-665	1XXX7XXX · 2 holders which blocks →	QWEST CORPORATION	9631	LE SUEUR	MN
—	507-667	4XXX7XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	LONSDALE	MN
—	507-669	1XXX3XXX5XXX7XXX8XXX · 3 holders which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	HARDWICK	MN
—	507-673	1XXX3XXX4XXX5XXX6XXX which blocks →	CENTURYTEL OF MINNESOTA, INC. DBA CENTURYLINK	1445	LUVERNE	MN
—	507-674	5XXX7XXX8XXX · 3 holders which blocks →	CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN	1427	AMBOY	MN
—	507-677	3XXX4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	FRONTIER COMMUNICATIONS OF MINNESOTA, INC.	1367	CHANDLER	MN
—	507-678	3XXX4XXX5XXX · 2 holders which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	DELFT	MN
—	507-680	0XXX1XXX2XXX7XXX8XXX9XXX · 4 holders which blocks →	ONVOY, LLC - MN	184D	IVANHOE	MN
—	507-683	4XXX5XXX6XXX · 2 holders which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	BIGELOW	MN
—	507-684	not yet reported which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	ELLENDALE	MN
—	507-685	7XXX which blocks →	CANNON VALLEY TELECOM, INC.	1440	MORRISTOWN	MN
—	507-688	4XXX6XXX · 2 holders which blocks →	ONVOY, LLC - MN	184D	ELLENDALE	MN
—	507-689	5XXX6XXX · 2 holders which blocks →	CENTURYLINK OF MINNESOTA, INC.	1456	ROLLINGSTN	MN
—	507-692	not yet reported which blocks →	CLEMENTS TEL. CO.	1372	CLEMENTS	MN
—	507-693	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - MN	184D	MILLVILLE	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.