Recent prefix assignments

334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026

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 26

Rogers Communications Canada Inc. (Wireless) 23

NEW CINGULAR WIRELESS PCS, LLC - IL 22

ONVOY, LLC - CA 19

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
—	608-862	7XXX8XXX · 2 holders which blocks →	UTELCO, INC.	0963	ALBANY	WI
—	608-868	not yet reported which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0841	MILTON	WI
—	608-872	6XXX which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0922	MOUNT ZION	WI
—	608-873	not yet reported which blocks →	WISCONSIN BELL INC	9327	STOUGHTON	WI
—	608-874	7XXX which blocks →	TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK	1155	EASTMAN	WI
—	608-875	3XXX which blocks →	TELEPHONE USA OF WISCONSIN, LLC DBA CENTURYLINK	1155	WAUZEKA	WI
—	608-876	7XXX which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0970	FOOTVILLE	WI
—	608-877	6XXX which blocks →	WISCONSIN BELL INC	9327	STOUGHTON	WI
—	608-879	0XXX1XXX4XXX5XXX6XXX8XXX · 3 holders which blocks →	FRONTIER NORTH INC. - WI	0886	ORFORDVL	WI
—	608-882	1XXX7XXX8XXX · 3 holders which blocks →	WISCONSIN BELL INC	9327	EVANSVILLE	WI
—	608-883	0XXX3XXX4XXX5XXX7XXX8XXX9XXX · 6 holders which blocks →	WISCONSIN BELL INC	9327	RICHMOND	WI
—	608-884	0XXX5XXX · 2 holders which blocks →	FRONTIER NORTH INC. - WI	0886	EDGERTON	WI
—	608-886	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI	6508	MADISON	WI
—	608-897	0XXX1XXX5XXX6XXX9XXX · 4 holders which blocks →	FRONTIER NORTH INC. - WI	0886	BRODHEAD	WI
—	608-911	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	WI
—	608-922	7XXX which blocks →	BRIGHTSPEED OF CENTRAL WISCONSIN, LLC	1159	GRATIOT	WI
—	608-924	0XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	FRONTIER NORTH INC. - WI	0886	RIDGEWAY	WI
—	608-927	0–9 XXXall 10 · 5 holders which blocks →	TELNYX LLC	073H	BELOIT	WI
—	608-929	0XXX1XXX2XXX3XXX5XXX6XXX8XXX9XXX · 6 holders which blocks →	BRIGHTSPEED OF WESTERN WISCONSIN, LLC	0922	HIGHLAND	WI
—	608-930	0XXX which blocks →	MH TELECOM, INC. - WI	3043	DODGEVILLE	WI
—	608-934	4XXX6XXX · 2 holders which blocks →	UTELCO, INC.	0963	JUDA	WI
—	608-935	not yet reported which blocks →	FRONTIER NORTH INC. - WI	0886	DODGEVILLE	WI
—	608-937	1XXX2XXX3XXX6XXX8XXX9XXX · 4 holders which blocks →	FRONTIER NORTH INC. - WI	0886	DODGEVILLE	WI
—	608-938	6XXX7XXX8XXX9XXX · 2 holders which blocks →	UTELCO, INC.	0963	MONTICELLO	WI
—	608-943	0XXX3XXX7XXX9XXX · 3 holders which blocks →	BRIGHTSPEED OF CENTRAL WISCONSIN, LLC	1159	MONTFORT	WI
—	608-949	0–9 XXXall 10 · 5 holders which blocks →	PEERLESS NETWORK OF WISCONSIN, LLC - WI	227F	MADISON	WI
—	608-950	not yet reported which blocks →				WI
—	608-957	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	WISCONSIN BELL INC	9327	MADISON	WI
—	608-958	not yet reported which blocks →			MADISON	WI
—	608-959	not yet reported which blocks →				WI
—	608-963	none assigned yet which blocks →	UNITED STATES CELLULAR - WI	6274	BARABOO	WI
—	608-965	1XXX9XXX · 2 holders which blocks →	BRIGHTSPEED OF CENTRAL WISCONSIN, LLC	1159	SHULLSBURG	WI
—	608-966	5XXX8XXX9XXX · 2 holders which blocks →	UTELCO, INC.	0963	BROWNTOWN	WI
—	608-967	1XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	FRONTIER NORTH INC. - WI	0886	HOLLANDALE	WI
—	608-968	7XXX which blocks →	BRIGHTSPEED OF CENTRAL WISCONSIN, LLC	1159	WIOTA	WI
—	608-976	not yet reported which blocks →	MULTIPLE OCN LISTING	MULT	XXXXXXXXXX	WI
—	608-979	0XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks →	ONVOY SPECTRUM, LLC	624H	VIROQUA	WI
—	608-981	0XXX1XXX3XXX4XXX6XXX7XXX8XXX · 5 holders which blocks →	FRONTIER NORTH INC. - WI	0886	BRIGGSVL	WI
—	608-983	not yet reported which blocks →	LA VALLE TEL. COOP.	0899	CAZENOVIA	WI
—	608-985	not yet reported which blocks →	LA VALLE TEL. COOP.	0899	LA VALLE	WI
—	608-986	0XXX1XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	FRONTIER NORTH INC. - WI	0886	LIME RIDGE	WI
—	608-987	0XXX7XXX8XXX9XXX · 4 holders which blocks →	FRONTIER NORTH INC. - WI	0886	MINERAL PT	WI
—	608-988	none assigned yet which blocks →	GRANTLAND TELECOM, INC.	0930	MOUNT HOPE	WI
—	608-989	not yet reported which blocks →	BRIGHTSPEED OF CENTRAL WISCONSIN, LLC	1159	BLAIR	WI
—	608-994	5XXX7XXX9XXX · 3 holders which blocks →	GRANTLAND TELECOM, INC.	0930	BLOOMINGTN	WI
—	608-996	not yet reported which blocks →	GRANTLAND TELECOM, INC.	0930	BAGLEY	WI
—	609-202	not yet reported which blocks →	NEW CINGULAR WIRELESS PCS, LLC - DC	4036	SALEM	NJ
—	609-203	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	TRENTON	NJ
—	609-204	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	PLEASANTVL	NJ
—	609-206	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NJ	6391	HADDON HTS	NJ

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.