NumberResearch Membership · Data 09/19/2026

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
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Recent NPA-NXX prefix assignments
AssignedNPA-NXXThousands-blocks taken (last-4 opening)Code holderOCNRate centerState
2002-08-12 989-437 not yet reported which blocks → 123.NET, LLC 2550 STANDISH MI
2002-08-12 989-530 not yet reported which blocks → 123.NET, LLC 2550 AKRON MI
2002-08-12 989-568 not yet reported which blocks → 123.NET, LLC 2550 ASHLEY MI
2002-08-12 989-571 not yet reported which blocks → 123.NET, LLC 2550 VASSAR MI
2002-08-12 989-596 not yet reported which blocks → 123.NET, LLC 2550 SAGINAW MI
2002-08-12 989-605 not yet reported which blocks → 123.NET, LLC 2550 AUBURN MI
2002-08-12 989-719 not yet reported which blocks → 123.NET, LLC 2550 CLIFFORD MI
2002-08-12 989-861 not yet reported which blocks → 123.NET, LLC 2550 OSCODA MI
2002-08-12 989-896 not yet reported which blocks → 123.NET, LLC 2550 WESTBRANCH MI
2002-08-05 989-980 not yet reported which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAGINAW MI
2002-07-31 989-390 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 GRAYLING MI
2002-07-29 989-398 1XXX7XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ELSIE MI
2002-07-29 989-472 0–9 XXXall 10 · 7 holders which blocks → 123.NET, LLC 2550 OWOSSO MI
2002-07-29 989-481 1XXX2XXX3XXX4XXX5XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BRECKENRDG MI
2002-07-29 989-533 1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ALMA MI
2002-07-29 989-567 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SHEPHERD MI
2002-07-29 989-715 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MERRILL MI
2002-07-29 989-932 6XXX7XXX8XXX · 3 holders which blocks → LENNON TELEPHONE COMPANY - MI 599H DURAND MI
2002-07-23 989-494 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 OWOSSO MI
2002-07-23 989-546 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MTPLEASANT MI
2002-07-23 989-796 6XXX7XXX which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ALMA MI
2002-07-19 989-513 4XXX5XXX6XXX7XXX8XXX which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 MIDLAND MI
2002-07-19 989-763 not yet reported which blocks → CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ITHACA MI
2002-05-29 989-449 3XXX6XXX8XXX · 3 holders which blocks → WINN TELEPHONE COMPANY DBA WINN TELECOM - MI 0127 ITHACA MI
2002-05-20 989-565 1XXX2XXX4XXX5XXX8XXX9XXX · 3 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDMORE MI
2002-05-20 989-857 1XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 REMUS MI
2002-05-14 989-414 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BAY CITY MI
2002-05-14 989-448 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GAYLORD MI
2002-05-14 989-488 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MIDLAND MI
2002-05-14 989-607 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SAGINAW MI
2002-05-14 989-726 0XXX1XXX2XXX3XXX5XXX7XXX9XXX · 7 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - MI 6120 WESTBRANCH MI
2002-05-09 989-492 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → METROPCS, INC. 5562 MIDLAND MI
2002-04-22 989-243 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J ATLANTA MI
2002-04-22 989-416 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J AUBURN MI
2002-04-22 989-485 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J AKRON MI
2002-04-22 989-507 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J ROSE CITY MI
2002-04-22 989-524 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J STERLING MI
2002-04-22 989-529 none assigned yet which blocks → OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 SAGINAW MI
2002-04-22 989-629 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J ALMA MI
2002-04-22 989-676 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J PRESCOTT MI
2002-04-22 989-782 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J LUPTON MI
2002-04-22 989-825 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J ALGER MI
2002-04-01 989-549 not yet reported which blocks → THUMB CELLULAR LP 6718 PIGEON MI
2002-02-28 989-486 0–9 XXXall 10 · 6 holders which blocks → PAETEC ITEL, LLC 829J MIDLAND MI
2002-01-17 989-367 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J CASS CITY MI
2002-01-17 989-393 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J SAGINAW MI
2002-01-17 989-438 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J CASEVILLE MI
2001-12-05 989-521 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J ROGERSCITY MI
2001-12-05 989-548 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J MAYVILLE MI
2001-12-05 989-552 not yet reported which blocks → TELNET WORLDWIDE, INC. 817J CLIFFORD 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.