Recent prefix assignments

358 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026

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

8X8, INC. 43

NEW CINGULAR WIRELESS PCS, LLC - DC 31

ONVOY, LLC - CA 27

NEW CINGULAR WIRELESS PCS, LLC - IL 27

ONVOY, LLC - NJ 15

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
—	715-795	none assigned yet which blocks →	CHEQUAMEGON COMMUNICATIONS COOPERATIVE, INC.	0860	BARNES	WI
—	715-796	1XXX3XXX4XXX7XXX · 3 holders which blocks →	BRIGHTSPEED OF NORTHWEST WISCONSIN, LLC	0950	HAMMOND	WI
—	715-797	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	EAU CLAIRE	WI
—	715-798	none assigned yet which blocks →	CHEQUAMEGON COMMUNICATIONS COOPERATIVE, INC.	0860	CABLE	WI
—	715-799	2XXX which blocks →	FRONTIER COMMUNICATIONS OF WISCONSIN LLC	0964	KESHENA	WI
—	715-805	not yet reported which blocks →	METRO SOUTHWEST PCS, LLP	9759	MERRILL	WI
—	715-811	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	WI
—	715-819	0–9 XXXall 10 · 7 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	NEILLSVL	WI
—	715-821	8XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	RIVERFALLS	WI
—	715-822	0XXX1XXX7XXX · 3 holders which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0841	CUMBERLAND	WI
—	715-823	0XXX which blocks →	FRONTIER COMMUNICATIONS OF WISCONSIN LLC	0964	CLINTONVL	WI
—	715-824	not yet reported which blocks →	AMHERST TEL. CO.	0843	AMHERST	WI
—	715-825	not yet reported which blocks →	LAKELAND COMMUNICATIONS GROUP, LLC	0902	MILLTOWN	WI
—	715-826	none assigned yet which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HAWKINS	WI
—	715-827	1XXX2XXX7XXX9XXX · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CORNELL	WI
—	715-828	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	EAU CLAIRE	WI
—	715-829	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	EAU CLAIRE	WI
—	715-830	none assigned yet which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-831	not yet reported which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-832	not yet reported which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-833	not yet reported which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-834	not yet reported which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-835	not yet reported which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-836	not yet reported which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-837	not yet reported which blocks →	CHIBARDUN TEL. COOP., INC.	0861	DALLAS	WI
—	715-838	not yet reported which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-839	not yet reported which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-841	0XXX9XXX · 2 holders which blocks →	FRONTIER NORTH INC. - WI	0886	WAUSAU	WI
—	715-842	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	WAUSAU	WI
—	715-843	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	WAUSAU	WI
—	715-845	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	WAUSAU	WI
—	715-846	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	WAUSAU	WI
—	715-847	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	WAUSAU	WI
—	715-848	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	WAUSAU	WI
—	715-849	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	WAUSAU	WI
—	715-850	6XXX7XXX9XXX · 3 holders which blocks →	NEW CELL DBA CELLCOM	6692	LAKEWOOD	WI
—	715-851	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	SHAWANO	WI
—	715-853	not yet reported which blocks →	NEW CELL DBA CELLCOM	6692	SHAWANO	WI
—	715-854	1XXX5XXX · 2 holders which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0841	CRIVITZ	WI
—	715-855	not yet reported which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-856	0XXX1XXX2XXX4XXX7XXX · 5 holders which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0841	WAUSAUKEE	WI
—	715-857	not yet reported which blocks →	LAKELAND COMMUNICATIONS GROUP, LLC	0902	FOX CREEK	WI
—	715-858	not yet reported which blocks →	WISCONSIN BELL INC	9327	EAU CLAIRE	WI
—	715-859	not yet reported which blocks →	CITIZENS TEL. COOP., INC.	0863	CANTON	WI
—	715-862	0XXX2XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HURLEY	WI
—	715-863	0–9 XXXall 10 · 9 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	CLINTONVL	WI
—	715-865	7XXX which blocks →	TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK	1155	STONE LAKE	WI
—	715-866	2XXX9XXX · 2 holders which blocks →	BRIGHTSPEED OF NORTHWEST WISCONSIN, LLC	0950	WEBSTER	WI
—	715-868	not yet reported which blocks →	BRUCE TEL. CO., INC.	0855	BRUCE	WI
—	715-869	0–9 XXXall 10 · 4 holders which blocks →	BANDWIDTH.COM CLEC, LLC - WI	007F	STEVENS PT	WI

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.