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
—	507-494	8XXX which blocks →	QWEST CORPORATION	9631	WINONA	MN
—	507-495	not yet reported which blocks →	ACE TEL. ASSN. - MN	1345	EITZEN	MN
—	507-498	not yet reported which blocks →	SPRING GROVE COMMUNICATIONS	1485	SPRING GRV	MN
—	507-501	0–9 XXXall 10 · 4 holders which blocks →	ONVOY, LLC - MN	184D	CHERRY GRV	MN
—	507-503	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	ONVOY, LLC - MN	184D	ADAMS	MN
—	507-504	2XXX which blocks →	ONVOY, LLC - MN	184D	STEWARTVL	MN
—	507-505	5XXX which blocks →	ONVOY, LLC - MN	184D	ST CHARLES	MN
—	507-506	1XXX5XXX6XXX7XXX · 3 holders which blocks →	MCC TELEPHONY OF MINNESOTA, LLC - MN	719F	PEMBERTON	MN
—	507-511	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MN
—	507-517	0–9 XXXall 10 · 4 holders which blocks →	COMCAST IP PHONE, LLC	318J	ROCHESTER	MN
—	507-520	4XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BLUE EARTH	MN
—	507-521	none assigned yet which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WASECA	MN
—	507-522	0XXX1XXX2XXX5XXX6XXX7XXX · 5 holders which blocks →	ONVOY, LLC - MN	184D	LEWISTON	MN
—	507-523	none assigned yet which blocks →	CENTURYLINK OF MINNESOTA, INC.	1456	LEWISTON	MN
—	507-524	0XXX8XXX · 2 holders which blocks →	CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN	1427	MAPLETON	MN
—	507-525	8XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MN	5816	BLUE EARTH	MN
—	507-526	not yet reported which blocks →	BLUE EARTH VALLEY TEL. CO.	1358	BLUE EARTH	MN
—	507-527	not yet reported which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	W CONCORD	MN
—	507-528	4XXX5XXX6XXX7XXX8XXX · 2 holders which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	CLAREMONT	MN
—	507-529	not yet reported which blocks →	QWEST CORPORATION	9631	ROCHESTER	MN
—	507-530	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MARSHALL	MN
—	507-532	not yet reported which blocks →	QWEST CORPORATION	9631	MARSHALL	MN
—	507-533	0XXX2XXX3XXX5XXX · 4 holders which blocks →	QWEST CORPORATION	9631	STEWARTVL	MN
—	507-534	none assigned yet which blocks →	CENTURYLINK OF MINNESOTA, INC.	1456	PLAINVIEW	MN
—	507-535	6XXX9XXX · 2 holders which blocks →	QWEST CORPORATION	9631	ROCHESTER	MN
—	507-536	not yet reported which blocks →	QWEST CORPORATION	9631	ROCHESTER	MN
—	507-537	not yet reported which blocks →	QWEST CORPORATION	9631	MARSHALL	MN
—	507-538	not yet reported which blocks →	QWEST CORPORATION	9631	ROCHESTER	MN
—	507-541	1XXX2XXX4XXX5XXX6XXX · 3 holders which blocks →	ONVOY, LLC - MN	184D	FULDA	MN
—	507-542	not yet reported which blocks →	ACE TEL. ASSN. - IA	1346	NONEWALBIN	MN
—	507-543	0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	ONVOY, LLC - MN	184D	LAFAYETTE	MN
—	507-545	none assigned yet which blocks →	CENTURYLINK OF MINNESOTA, INC.	1456	EYOTA	MN
—	507-546	0XXX5XXX which blocks →	CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN	1427	GARDENCITY	MN
—	507-548	not yet reported which blocks →	INTERSTATE TELECOM COOP, INC. - SD	1651	EASTELKTON	MN
—	507-549	0XXX4XXX5XXX8XXX · 3 holders which blocks →	CONSOLIDATED COMMUNICATIONS OF MINNESOTA CO - MN	1427	VERNON CTR	MN
—	507-553	not yet reported which blocks →	BLUE EARTH VALLEY TEL. CO.	1358	WELLS	MN
—	507-554	1XXX2XXX3XXX4XXX5XXX7XXX8XXX · 2 holders which blocks →	ONVOY, LLC - MN	184D	LYLE	MN
—	507-555	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	DIR ASST	MN
—	507-557	not yet reported which blocks →	MINNESOTA VALLEY TEL. CO., INC.	1439	FRANKLIN	MN
—	507-560	none assigned yet which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	LE SUEUR	MN
—	507-561	1XXX7XXX8XXX · 3 holders which blocks →	CENTURYTEL OF CHESTER, INC. DBA CENTURYLINK	1126	NO CHESTER	MN
—	507-562	not yet reported which blocks →	CLARITY TELECOM, LLC DBA BLUEPEAK	4768	PIPESTONE	MN
—	507-565	0XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	ONVOY, LLC - MN	184D	JANESVILLE	MN
—	507-567	none assigned yet which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	BROWNSDALE	MN
—	507-568	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - MN	184D	CLARKS GRV	MN
—	507-569	not yet reported which blocks →	WINNEBAGO COOP. TEL. ASSN. - MN	1338	NORTH RAKE	MN
—	507-571	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks →	BANDWIDTH.COM CLEC, LLC - MN	980E	WASECA	MN
—	507-582	not yet reported which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	ADAMS	MN
—	507-583	not yet reported which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	BLOOMNPRRI	MN
—	507-584	3XXX4XXX5XXX · 2 holders which blocks →	CITIZENS TELECOM CO MN-FRONTIER CITIZENS COM-MN	1123	DEXTER	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.