NumberResearch Membership · Data 09/19/2026

Recent prefix assignments

0 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, all time — NPA 832
AERIAL COMMUNICATIONS, INC. 177
NEW CINGULAR WIRELESS PCS, LLC - IL 147
SOUTHWESTERN BELL 83
LEVEL 3 COMMUNICATIONS, LLC - TX 71
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 55
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
— 832-642 8XXX which blocks → AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
— 832-645 2XXX3XXX4XXX5XXX6XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ALVIN TX
— 832-647 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-651 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-654 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-656 none assigned yet which blocks → METROPCS, INC. 5562 HOUSTON TX
— 832-657 1XXX2XXX3XXX4XXX5XXX6XXX7XXX9XXX · 4 holders which blocks → SOUTHWESTERN BELL 9533 HOUSTON TX
— 832-658 0–9 XXXall 10 · 3 holders which blocks → SOUTHWESTERN BELL 9533 HOUSTON TX
— 832-659 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → COMCAST IP PHONE, LLC 318J HOUSTON TX
— 832-660 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX which blocks → ONVOY, LLC - TX 903C HOUSTON TX
— 832-661 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-668 0XXX4XXX5XXX6XXX9XXX · 2 holders which blocks → SOUTHWESTERN BELL 9533 HOUSTON TX
— 832-669 0–9 XXXall 10 · 5 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F PORTER HTS TX
— 832-673 1XXX4XXX5XXX6XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHWESTERN BELL 9533 HOUSTON TX
— 832-676 not yet reported which blocks → SOUTHWESTERN BELL 9533 HOUSTON TX
— 832-678 0XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 3 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SATSUMA TX
— 832-680 0–9 XXXall 10 · 3 holders which blocks → BANDWIDTH.COM CLEC, LLC - TX 004F BAMMEL TX
— 832-684 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → MATRIX TELECOM, LLC. S/I/I TNCI - TX 7715 CYPRESS TX
— 832-685 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LIVERPOOL TX
— 832-687 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-689 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-692 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
— 832-695 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BAYTOWN TX
— 832-698 1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7074 TOMBALL TX
— 832-700 not yet reported which blocks → MULTIPLE OCN LISTING MULT TX
— 832-702 0–9 XXXall 10 · 3 holders which blocks → ONVOY, LLC - TX 903C SPRING TX
— 832-709 0–9 XXXall 10 · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
— 832-711 not yet reported which blocks → MULTIPLE OCN LISTING MULT XXXXXXXXXX TX
— 832-715 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-717 1XXX2XXX6XXX8XXX9XXX · 3 holders which blocks → SOUTHWESTERN BELL 9533 TOMBALL TX
— 832-721 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-722 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-723 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-724 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-725 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-730 0XXX1XXX2XXX3XXX4XXX5XXX7XXX8XXX9XXX · 4 holders which blocks → SOUTHWESTERN BELL 9533 HOUSTON TX
— 832-734 3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SHELDON TX
— 832-735 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SMITHERSLK TX
— 832-738 0XXX1XXX2XXX3XXX5XXX6XXX7XXX8XXX9XXX · 2 holders which blocks → LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DICKINSON TX
— 832-741 none assigned yet which blocks → METROPCS, INC. 5562 HOUSTON TX
— 832-743 1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → MATRIX TELECOM, LLC. S/I/I TNCI - TX 7715 VLY LODGE TX
— 832-746 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-747 not yet reported which blocks → LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7074 WESTFIELD TX
— 832-753 1XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SEABROOK TX
— 832-754 none assigned yet which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-755 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
— 832-757 0–9 XXXall 10 · 3 holders which blocks → AERIAL COMMUNICATIONS, INC. 6701 RICHMNRNBG TX
— 832-758 3XXX4XXX5XXX6XXX7XXX8XXX9XXX which blocks → NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUSTON TX
— 832-764 0XXX1XXX2XXX3XXX4XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7074 SPRING TX
— 832-766 not yet reported which blocks → AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX

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.