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 989

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 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
2006-12-13	989-303	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	ST LOUIS	MI
2006-10-19	989-369	8XXX9XXX · 2 holders which blocks →	ALLBAND COMMUNICATIONS COOPERATIVE - MI	542D	ROBBS CRK	MI
2006-08-16	989-630	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 7 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	HARRISON	MI
2006-06-01	989-317	0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	WINN TELEPHONE COMPANY DBA WINN TELECOM - MI	0127	MTPLEASANT	MI
2006-05-02	989-331	0–9 XXXall 10 · 7 holders which blocks →	FRONTIER NORTH, INC. - MI	0695	ALMA	MI
2006-04-20	989-301	0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 7 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	HEMLOCK	MI
2006-02-22	989-265	1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks →	DAYSTARR LLC DBA DAYSTARR COMMUNICATIONS	993L	CRYSTAL	MI
2006-01-13	989-750	0–9 XXXall 10 · 5 holders which blocks →	AT&T ENTERPRISES, LLC	516C	MIDLAND	MI
2005-09-22	989-321	0–9 XXXall 10 · 3 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	SAGINAW	MI
2005-09-13	989-646	1XXX2XXX4XXX6XXX7XXX8XXX · 4 holders which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	AU GRES	MI
2005-08-31	989-388	0–9 XXXall 10 · 5 holders which blocks →	123.NET, LLC	2550	ITHACA	MI
2005-08-18	989-525	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	SAGINAW	MI
2005-08-05	989-787	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 6 holders which blocks →	CYNERGYCOMM.NET, INC. - MI	9245	WESTBRANCH	MI
2005-08-02	989-404	2XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks →	NEW CINGULAR WIRELESS PCS, LLC - IL	6534	HOPE	MI
2005-05-31	989-945	0–9 XXXall 10 · 2 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	OVID	MI
2005-04-06	989-327	0–9 XXXall 10 · 3 holders which blocks →	AT&T ENTERPRISES, LLC	516C	SAGINAW	MI
2005-03-18	989-266	0–9 XXXall 10 · 7 holders which blocks →	PAETEC ITEL, LLC	829J	AUBURN	MI
2005-03-18	989-373	0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks →	PAETEC ITEL, LLC	829J	OWENDALE	MI
2005-03-18	989-442	0–9 XXXall 10 · 7 holders which blocks →	PAETEC ITEL, LLC	829J	COLEMAN	MI
2005-03-18	989-850	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	GAGETOWN	MI
2005-03-14	989-474	0–9 XXXall 10 · 6 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	ROGERSCITY	MI
2005-02-14	989-252	0–9 XXXall 10 · 4 holders which blocks →	PAETEC ITEL, LLC	829J	SAGINAW	MI
2004-12-06	989-456	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	OMER	MI
2004-12-06	989-532	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	AU GRES	MI
2004-12-06	989-626	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	CHESANING	MI
2004-10-27	989-668	1XXX6XXX7XXX8XXX9XXX · 3 holders which blocks →	WESTPHALIA BROADBAND, INC. - MI	591C	ST JOHNS	MI
2004-10-20	989-882	0–9 XXXall 10 · 5 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	VASSAR	MI
2004-10-18	989-262	0–9 XXXall 10 · 8 holders which blocks →	LEVEL 3 COMMUNICATIONS, LLC - MI	6120	FRANKENMTH	MI
2004-10-18	989-741	0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 6 holders which blocks →	WINN TELEPHONE COMPANY DBA WINN TELECOM - MI	0127	HARRISON	MI
2004-10-06	989-443	0–9 XXXall 10 · 3 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	SAGINAW	MI
2004-08-30	989-709	3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	GLADWIN	MI
2004-08-09	989-325	6XXX7XXX8XXX · 3 holders which blocks →	THUMB CELLULAR LP	6718	CARO	MI
2004-06-14	989-244	0–9 XXXall 10 · 7 holders which blocks →	PAETEC ITEL, LLC	829J	BIRCH RUN	MI
2004-05-18	989-286	0XXX1XXX3XXX4XXX5XXX8XXX9XXX · 6 holders which blocks →	OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC	2964	CARO	MI
2004-04-16	989-254	1XXX2XXX3XXX4XXX5XXX6XXX · 3 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	EAST TAWAS	MI
2004-04-16	989-255	not yet reported which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	ALPENA	MI
2004-04-01	989-323	2XXX3XXX4XXX5XXX6XXX8XXX · 4 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	CHESANING	MI
2004-04-01	989-324	1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 2 holders which blocks →	CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI	6003	PINCONNING	MI
2004-03-25	989-231	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	CARO	MI
2004-03-25	989-232	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	WHITTEMORE	MI
2004-03-25	989-234	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	VICKERYVL	MI
2004-03-25	989-237	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	SIXTYLAKES	MI
2004-03-25	989-238	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	SANDLK HTS	MI
2004-03-25	989-241	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	PORT HOPE	MI
2004-03-25	989-242	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	PORTAUSTIN	MI
2004-03-24	989-219	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	HOPE	MI
2004-03-24	989-221	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	PINCONNING	MI
2004-03-24	989-223	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	HALE	MI
2004-03-24	989-226	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	GLENNIE	MI
2004-03-24	989-228	not yet reported which blocks →	TELNET WORLDWIDE, INC.	817J	CRYSTAL	MI

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.