Recent prefix assignments

1 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026

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 660

LEVEL 3 COMMUNICATIONS, LLC - MO 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
—	660-491	none assigned yet which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	MOUND CITY	MO
—	660-492	1XXX4XXX5XXX6XXX8XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	CLINTON	MO
—	660-493	1XXX3XXX4XXX5XXX6XXX7XXX9XXX · 2 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	WAVERLY	MO
—	660-498	1XXX4XXX5XXX6XXX9XXX · 3 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	BLAIRSTOWN	MO
—	660-499	1XXX7XXX · 2 holders which blocks →	CONSOLIDATED COMMUNICATIONS OF MISSOURI COMPANY	0472	CREIGHTON	MO
—	660-511	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MO
—	660-525	5XXX7XXX8XXX which blocks →	AERIAL COMMUNICATIONS, INC.	6701	CLINTON	MO
—	660-527	6XXX7XXX which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	GREENRIDGE	MO
—	660-528	2XXX3XXX5XXX7XXX8XXX which blocks →	AERIAL COMMUNICATIONS, INC.	6701	MARYVILLE	MO
—	660-529	0XXX4XXX7XXX8XXX · 4 holders which blocks →	SOUTHWESTERN BELL	9533	SLATER	MO
—	660-530	0XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	SOUTHWESTERN BELL	9533	SEDALIA	MO
—	660-533	0XXX1XXX3XXX5XXX7XXX · 4 holders which blocks →	WINDSTREAM MISSOURI, INC.	1885	COFFEY	MO
—	660-534	not yet reported which blocks →	CHARITON VALLEY TEL. CO.	1864	BOSWORTH	MO
—	660-535	9XXX which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	KING CITY	MO
—	660-537	4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	BOONVILLE	MO
—	660-538	2XXX3XXX6XXX · 2 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	BLACKBURN	MO
—	660-541	none assigned yet which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MARYVILLE	MO
—	660-542	5XXX which blocks →	SOUTHWESTERN BELL	9533	CARROLLTON	MO
—	660-543	not yet reported which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	WARRENSBG	MO
—	660-544	none assigned yet which blocks →	BRIGHTSPEED OF EAST MISSOURI, LLC	1151	DALTON	MO
—	660-547	1XXX7XXX · 2 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	LINCOLN	MO
—	660-548	2XXX7XXX9XXX · 3 holders which blocks →	BRIGHTSPEED OF EAST MISSOURI, LLC	1151	BRUNSWICK	MO
—	660-549	not yet reported which blocks →	CHARITON VALLEY TEL. CO.	1864	DE WITT	MO
—	660-555	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	DIR ASST	MO
—	660-557	0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks →	NETGENUITY INC.	356H	SWEET SPG	MO
—	660-560	0XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	HIGH POINT	MO
—	660-562	not yet reported which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	MARYVILLE	MO
—	660-563	0XXX7XXX8XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	KNOBNOSTER	MO
—	660-564	6XXX8XXX · 2 holders which blocks →	WINDSTREAM MISSOURI, INC.	1885	GRANT CITY	MO
—	660-565	not yet reported which blocks →	CHARITON VALLEY TEL. CO.	1864	HALE	MO
—	660-568	4XXX5XXX which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	HOUSTONIA	MO
—	660-572	4XXX6XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	MOUND CITY	MO
—	660-580	1XXX2XXX3XXX5XXX · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	WARRENSBG	MO
—	660-581	not yet reported which blocks →	WINDSTREAM IOWA COMMUNICATIONS, INC. - NORTH	1167	SOBRADDYVL	MO
—	660-582	none assigned yet which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	MARYVILLE	MO
—	660-584	not yet reported which blocks →	CITIZENS TEL. CO.	1865	HIGGINSVL	MO
—	660-587	2XXX6XXX7XXX8XXX · 3 holders which blocks →	ONVOY, LLC - MO	093F	LA PLATA	MO
—	660-591	0XXX2XXX3XXX4XXX5XXX6XXX7XXX · 2 holders which blocks →	AERIAL COMMUNICATIONS, INC.	6701	MACON	MO
—	660-592	not yet reported which blocks →	GRAND RIVER MUTUAL TEL CO	1888	POWERSVL	MO
—	660-593	4XXX6XXX9XXX · 2 holders which blocks →	GREEN HILLS TELECOMMUNICATIONS SERVICES	6155	NORBORNE	MO
—	660-594	4XXX5XXX7XXX · 2 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	NORBORNE	MO
—	660-595	1XXX5XXX6XXX9XXX · 3 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	MALTA BEND	MO
—	660-598	0XXX3XXX5XXX7XXX9XXX · 5 holders which blocks →	BRIGHTSPEED OF EAST MISSOURI, LLC	1151	ROCKVILLE	MO
—	660-611	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MO
—	660-613	2XXX6XXX which blocks →	ONVOY, LLC - MO	093F	LEETON	MO
—	660-619	9XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	SEDALIA	MO
—	660-620	8XXX9XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	SEDALIA	MO
—	660-621	none assigned yet which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	NEWFRNKLIN	MO
—	660-622	not yet reported which blocks →	GREEN HILLS TEL. CORP.	1890	TINA	MO
—	660-623	1XXX6XXX8XXX9XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TARKIO	MO

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.