NumberResearch Membership · Data 09/26/2026

Recent prefix assignments

0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026

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, all time — NPA 765
INDIANA BELL TEL CO INC 127
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
— 765-482 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 LEBANON IN
— 765-483 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 LEBANON IN
— 765-485 1XXX4XXX5XXX7XXX9XXX · 4 holders which blocks → INDIANA BELL TEL CO INC 9325 LEBANON IN
— 765-492 0XXX1XXX2XXX6XXX · 4 holders which blocks → INDIANA BELL TEL CO INC 9325 CAYUGA IN
— 765-515 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
— 765-519 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
— 765-521 9XXX which blocks → INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
— 765-527 8XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
— 765-529 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
— 765-536 0XXX1XXX3XXX5XXX6XXX8XXX9XXX · 7 holders which blocks → INDIANA BELL TEL CO INC 9325 SUMMITVL IN
— 765-537 0XXX1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → INDIANA BELL TEL CO INC 9325 PARAGON IN
— 765-544 0XXX1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 6 holders which blocks → INDIANA BELL TEL CO INC 9325 MANILLA IN
— 765-548 1XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 ROSEDALE IN
— 765-552 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ELWOOD IN
— 765-557 1XXX4XXX5XXX6XXX7XXX8XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 ELWOOD IN
— 765-566 0XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 BURLINGTON IN
— 765-569 7XXX8XXX which blocks → INDIANA BELL TEL CO INC 9325 ROCKVILLE IN
— 765-583 7XXX8XXX which blocks → INDIANA BELL TEL CO INC 9325 OTTERBEIN IN
— 765-589 1XXX2XXX4XXX5XXX6XXX9XXX · 4 holders which blocks → INDIANA BELL TEL CO INC 9325 BUCK CREEK IN
— 765-593 1XXX5XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
— 765-597 4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → INDIANA BELL TEL CO INC 9325 MARSHALL IN
— 765-599 0XXX8XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 NEW CASTLE IN
— 765-608 7XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-609 0XXX1XXX2XXX7XXX8XXX9XXX · 2 holders which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-619 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-622 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-628 4XXX8XXX9XXX · 3 holders which blocks → INDIANA BELL TEL CO INC 9325 GREENTOWN IN
— 765-640 9XXX which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-641 5XXX which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-642 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-643 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-644 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-646 4XXX which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-648 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-649 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-651 1XXX which blocks → INDIANA BELL TEL CO INC 9325 MARION IN
— 765-654 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 FRANKFORT IN
— 765-656 4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → INDIANA BELL TEL CO INC 9325 FRANKFORT IN
— 765-659 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 FRANKFORT IN
— 765-662 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MARION IN
— 765-664 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MARION IN
— 765-665 0XXX2XXX4XXX5XXX6XXX7XXX8XXX · 7 holders which blocks → INDIANA BELL TEL CO INC 9325 DANA IN
— 765-668 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MARION IN
— 765-669 none assigned yet which blocks → INDIANA BELL TEL CO INC 9325 MARION IN
— 765-671 9XXX which blocks → INDIANA BELL TEL CO INC 9325 MARION IN
— 765-673 9XXX which blocks → INDIANA BELL TEL CO INC 9325 MARION IN
— 765-674 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MARION IN
— 765-677 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 MARION IN
— 765-683 not yet reported which blocks → INDIANA BELL TEL CO INC 9325 ANDERSON IN
— 765-688 0XXX1XXX5XXX7XXX · 3 holders which blocks → INDIANA BELL TEL CO INC 9325 BUNKERHILL IN

Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.