Recent prefix assignments

3 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 970

UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 2

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO 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
—	970-645	0XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	QWEST CORPORATION	9636	WELDONA	CO
—	970-648	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - CO	078F	GUNNISON	CO
—	970-653	not yet reported which blocks →	CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK	2185	MCCOY	CO
—	970-655	not yet reported which blocks →	UNION TELEPHONE COMPANY	013B	GRANBY	CO
—	970-656	not yet reported which blocks →	WIGGINS TEL. ASSN.	2209	BRIGGSDALE	CO
—	970-662	none assigned yet which blocks →	QWEST CORPORATION	9636	SOCHEYENNE	CO
—	970-663	not yet reported which blocks →	QWEST CORPORATION	9636	LOVELAND	CO
—	970-664	not yet reported which blocks →	PLAINS COOP. TEL. ASSN., INC.	2199	VONASEBERT	CO
—	970-667	not yet reported which blocks →	QWEST CORPORATION	9636	LOVELAND	CO
—	970-668	7XXX which blocks →	QWEST CORPORATION	9636	DILLON	CO
—	970-669	not yet reported which blocks →	QWEST CORPORATION	9636	LOVELAND	CO
—	970-670	0–9 XXXall 10 · 5 holders which blocks →	ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM	3467	BERTHOUD	CO
—	970-674	7XXX which blocks →	QWEST CORPORATION	9636	WINDSOR	CO
—	970-675	not yet reported which blocks →	CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK	2185	RANGELY	CO
—	970-677	not yet reported which blocks →	CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK	2185	DOVE CREEK	CO
—	970-679	not yet reported which blocks →	QWEST CORPORATION	9636	LOVELAND	CO
—	970-680	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	ONVOY, LLC - CO	026D	GILCREST	CO
—	970-681	not yet reported which blocks →	AMERICAN MESSAGING SERVICES, LLC	9748	GREELEY	CO
—	970-686	not yet reported which blocks →	QWEST CORPORATION	9636	WINDSOR	CO
—	970-689	3XXX which blocks →	T-MOBILE USA, INC.	6529	FT COLLINS	CO
—	970-690	not yet reported which blocks →	T-MOBILE USA, INC.	6529	FT COLLINS	CO
—	970-691	not yet reported which blocks →	T-MOBILE USA, INC.	6529	FT COLLINS	CO
—	970-692	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	T-MOBILE USA, INC.	6529	FT COLLINS	CO
—	970-700	not yet reported which blocks →				CO
—	970-701	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	T-MOBILE USA, INC.	6529	CRAIG	CO
—	970-703	0–9 XXXall 10 · 3 holders which blocks →	ONVOY, LLC - CO	026D	PLATTEVL	CO
—	970-704	5XXX6XXX8XXX which blocks →	QWEST CORPORATION	9636	CARBONDALE	CO
—	970-708	6XXX8XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	TELLURIDE	CO
—	970-710	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	T-MOBILE USA, INC.	6529	ASPEN	CO
—	970-711	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	CO
—	970-722	2XXX3XXX4XXX6XXX8XXX9XXX · 4 holders which blocks →	QWEST CORPORATION	9636	FRASER	CO
—	970-723	not yet reported which blocks →	CENTURYTEL OF EAGLE, INC. DBA CENTURYLINK	2185	WALDEN	CO
—	970-724	2XXX4XXX5XXX6XXX7XXX · 3 holders which blocks →	QWEST CORPORATION	9636	KREMMLING	CO
—	970-725	2XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	QWEST CORPORATION	9636	HTSLPHRSPG	CO
—	970-726	not yet reported which blocks →	QWEST CORPORATION	9636	FRASER	CO
—	970-728	not yet reported which blocks →	QWEST CORPORATION	9636	TELLURIDE	CO
—	970-731	not yet reported which blocks →	CENTURYTEL OF COLORADO, INC. DBA CENTURYLINK	2208	PAGOSA SPG	CO
—	970-734	not yet reported which blocks →	UNION TELEPHONE COMPANY	013B	STEAMBOSPG	CO
—	970-735	not yet reported which blocks →	STONEHAM COOP. TEL. CO.	2206	STONEHAM	CO
—	970-736	3XXX4XXX5XXX6XXX7XXX9XXX · 3 holders which blocks →	QWEST CORPORATION	9636	OAK CREEK	CO
—	970-737	3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	QWEST CORPORATION	9636	GILCREST	CO
—	970-739	2XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	CORTEZ	CO
—	970-748	not yet reported which blocks →	QWEST CORPORATION	9636	VAIL	CO
—	970-749	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	DURANGO	CO
—	970-752	not yet reported which blocks →	QWEST CORPORATION	9636	DILLON	CO
—	970-759	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC	6010	DURANGO	CO
—	970-761	0–9 XXXall 10 · 5 holders which blocks →	ONVOY, LLC - CO	026D	STEAMBOSPG	CO
—	970-768	not yet reported which blocks →	N.E. COLORADO CELLULAR, INC.	6874	FORTMORGAN	CO
—	970-774	not yet reported which blocks →	HAXTUN TEL. CO.	2190	HAXTUN	CO
—	970-776	0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CO	6567	LOVELAND	CO

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.