NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.

Most active assignees, last 30 days — NPA 903
ONVOY, LLC - TX 6
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 3
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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2010-04-19 903-263-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CARTHAGE TX
2010-04-19 903-487-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SHERMAN TX
2010-04-12 903-702-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 MARSHALL TX
2010-03-30 903-771-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J SHERMAN TX
2010-03-26 903-265-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CARTHAGE TX
2010-03-26 903-650-4XXX 4000–4999Assigned METROPCS, INC. 5562 ATLANTA TX
2010-03-26 903-650-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ATLANTA TX
2010-03-23 903-371-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2010-03-23 903-371-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2010-03-23 903-497-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MINEOLA TX
2010-03-17 903-373-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PALESTINE TX
2010-03-17 903-373-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PALESTINE TX
2010-03-17 903-401-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PARIS TX
2010-03-17 903-401-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PARIS TX
2010-03-16 903-371-3XXX 3000–3999Assigned METROPCS, INC. 5562 LONGVIEW TX
2010-03-16 903-371-7XXX 7000–7999Assigned METROPCS, INC. 5562 LONGVIEW TX
2010-03-02 903-689-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SULPHURSPG TX
2010-03-01 903-204-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MTPLEASANT TX
2010-03-01 903-204-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 MTPLEASANT TX
2010-03-01 903-392-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HENDERSON TX
2010-03-01 903-392-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HENDERSON TX
2010-03-01 903-393-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 JACKSONVL TX
2010-02-18 903-495-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PARIS TX
2010-02-18 903-495-9XXX 9000–9999Assigned METROPCS, INC. 5562 PARIS TX
2010-02-18 903-702-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MARSHALL TX
2010-02-17 903-371-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2010-02-17 903-371-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2010-02-17 903-707-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2010-02-17 903-707-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2010-02-17 903-707-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TYLER TX
2010-02-08 903-224-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CASH TX
2010-02-08 903-326-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RICE TX
2010-02-08 903-980-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BENWHEELER TX
2010-02-05 903-204-1XXX 1000–1999Assigned METROPCS, INC. 5562 MTPLEASANT TX
2010-02-05 903-486-8XXX 8000–8999Assigned METROPCS, INC. 5562 BONHAM TX
2010-01-20 903-402-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GILMER TX
2010-01-19 903-804-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ATHENS TX
2010-01-19 903-804-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ATHENS TX
2010-01-18 903-393-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 JACKSONVL TX
2010-01-18 903-601-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 JEFFERSON TX
2010-01-18 903-946-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PITTSBURG TX
2010-01-18 903-946-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PITTSBURG TX
2010-01-18 903-975-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANDYCREEK TX
2010-01-15 903-331-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2010-01-15 903-331-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2010-01-15 903-331-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LONGVIEW TX
2010-01-15 903-474-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 EMORY TX
2010-01-14 903-203-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ATHENS TX
2010-01-14 903-263-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CARTHAGE TX
2010-01-14 903-263-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CARTHAGE TX

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.