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
—	660-624	6XXX7XXX8XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	WARRENSBG	MO
—	660-626	9XXX which blocks →	SOUTHWESTERN BELL	9533	KIRKSVILLE	MO
—	660-627	4XXX8XXX9XXX · 3 holders which blocks →	SOUTHWESTERN BELL	9533	KIRKSVILLE	MO
—	660-631	8XXX which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	MARSHALL	MO
—	660-634	none assigned yet which blocks →	BRIGHTSPEED OF EAST MISSOURI, LLC	1151	BRUNSWICK	MO
—	660-635	2XXX6XXX · 2 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	TRENTON	MO
—	660-636	not yet reported which blocks →	GREEN HILLS TEL. CORP.	1890	AVALON	MO
—	660-638	2XXX5XXX6XXX which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	URICH	MO
—	660-639	not yet reported which blocks →	GRAND RIVER MUTUAL TEL CO	1888	CHULA	MO
—	660-641	none assigned yet which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO	5814	HIGGINSVL	MO
—	660-643	not yet reported which blocks →	CRAW-KAN TEL. COOP.,INC. - MO	1759	HUME	MO
—	660-644	not yet reported which blocks →	GREEN HILLS TEL. CORP.	1890	BRECKENRDG	MO
—	660-645	0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 3 holders which blocks →	BRIGHTSPEED OF EAST MISSOURI, LLC	1151	BRAYMER	MO
—	660-646	not yet reported which blocks →	SOUTHWESTERN BELL	9533	CHILLICOTH	MO
—	660-647	1XXX4XXX6XXX7XXX9XXX · 5 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	WINDSOR	MO
—	660-651	none assigned yet which blocks →	UNITED STATES CELLULAR - MO	6275	MOBERLY	MO
—	660-652	not yet reported which blocks →	GRAND RIVER MUTUAL TEL CO	1888	BARNARD	MO
—	660-653	2XXX5XXX6XXX · 2 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	LEETON	MO
—	660-656	1XXX2XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	CENTERVIEW	MO
—	660-659	not yet reported which blocks →	GREEN HILLS TEL. CORP.	1890	WHEELING	MO
—	660-661	1XXX6XXX7XXX · 2 holders which blocks →	ONVOY, LLC - MO	093F	SYRACUSE	MO
—	660-663	not yet reported which blocks →	WINDSTREAM MISSOURI, INC.	1885	GALLATIN	MO
—	660-665	not yet reported which blocks →	SOUTHWESTERN BELL	9533	KIRKSVILLE	MO
—	660-666	not yet reported which blocks →	GRAND RIVER MUTUAL TEL CO	1888	DARLINGTON	MO
—	660-668	1XXX5XXX6XXX8XXX9XXX · 4 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	COLE CAMP	MO
—	660-669	0XXX7XXX9XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	OREGON	MO
—	660-670	none assigned yet which blocks →	UNITED STATES CELLULAR - MO	6275	KIMBERLY	MO
—	660-671	1XXX which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	PICKERING	MO
—	660-673	not yet reported which blocks →	GRAND RIVER MUTUAL TEL CO	1888	GALT	MO
—	660-674	not yet reported which blocks →	ALMA COMMUNICATIONS COMPANY DBA ALMA TELEPHONE CO	1860	ALMA	MO
—	660-678	8XXX9XXX which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	CHILHOWEE	MO
—	660-679	none assigned yet which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	BUTLER	MO
—	660-683	1XXX2XXX3XXX7XXX9XXX · 4 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	CRAIG	MO
—	660-684	7XXX which blocks →	GRAND RIVER MUTUAL TEL CO	1888	JAMESPORT	MO
—	660-686	1XXX6XXX7XXX · 3 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	FAIRFAX	MO
—	660-687	0XXX9XXX · 2 holders which blocks →	SOUTHWESTERN BELL	9533	KNOBNOSTER	MO
—	660-689	not yet reported which blocks →	CHARITON VALLEY TEL. CO.	1864	NEW BOSTON	MO
—	660-691	0XXX4XXX7XXX · 3 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MO	4932	CLARENCE	MO
—	660-692	none assigned yet which blocks →	NORTHEAST MISSOURI RURAL TEL. CO.	1931	POLLOCK	MO
—	660-693	1XXX3XXX6XXX8XXX · 3 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	MONTROSE	MO
—	660-694	4XXX5XXX6XXX8XXX · 2 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	CALHOUN	MO
—	660-695	not yet reported which blocks →	CHARITON VALLEY TEL. CO.	1864	BUCKLIN	MO
—	660-696	3XXX4XXX6XXX8XXX · 2 holders which blocks →	EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO	1811	DEEPWATER	MO
—	660-697	6XXX7XXX which blocks →	ONVOY, LLC - MO	093F	BLACKBURN	MO
—	660-699	0XXX1XXX4XXX6XXX8XXX9XXX · 5 holders which blocks →	BRIGHTSPEED OF EAST MISSOURI, LLC	1151	CLARENCE	MO
—	660-700	not yet reported which blocks →				MO
—	660-707	8XXX which blocks →	SOUTHWESTERN BELL	9533	CHILLICOTH	MO
—	660-711	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	MO
—	660-721	0XXX2XXX6XXX7XXX8XXX · 4 holders which blocks →	ONVOY, LLC - MO	093F	REVERE	MO
—	660-723	2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	WARSAW	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.