NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

10 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 956
ONVOY, LLC - TX 8
AHOI LLC 1
8X8, INC. 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 thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2012-11-20 956-529-8XXX 8000–8999Assigned STPCS JOINT VENTURE, LLC 4290 MISSION TX
2012-11-16 956-215-0XXX 0000–0999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-11-16 956-215-1XXX 1000–1999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-11-16 956-215-3XXX 3000–3999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-11-16 956-215-4XXX 4000–4999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-11-16 956-215-5XXX 5000–5999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-11-16 956-215-6XXX 6000–6999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-11-16 956-215-9XXX 9000–9999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-11-16 956-800-2XXX 2000–2999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-11-16 956-990-8XXX 8000–8999Assigned STPCS JOINT VENTURE, LLC 4290 HARLINGEN TX
2012-11-16 956-990-9XXX 9000–9999Assigned STPCS JOINT VENTURE, LLC 4290 HARLINGEN TX
2012-11-13 956-437-8XXX 8000–8999Assigned STPCS JOINT VENTURE, LLC 4290 ROMA TX
2012-11-12 956-567-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C EDCOUCH TX
2012-11-12 956-772-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C PORTISABEL TX
2012-11-12 956-923-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SAN BENITO TX
2012-10-30 956-261-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WESLACO TX
2012-10-29 956-269-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LAREDO TX
2012-10-29 956-854-9XXX 9000–9999Assigned STPCS JOINT VENTURE, LLC 4290 WESLACO TX
2012-10-29 956-943-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F PORTISABEL TX
2012-10-24 956-267-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LAREDO TX
2012-10-24 956-335-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HARLINGEN TX
2012-10-24 956-335-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HARLINGEN TX
2012-10-24 956-434-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LOSFRESNOS TX
2012-10-24 956-949-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LAREDO TX
2012-10-18 956-898-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LAREDO TX
2012-10-16 956-800-7XXX 7000–7999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-10-16 956-800-8XXX 8000–8999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-10-12 956-786-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAREDO TX
2012-10-12 956-786-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAREDO TX
2012-10-09 956-252-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 EDINBURG TX
2012-10-04 956-898-4XXX 4000–4999Assigned STPCS JOINT VENTURE, LLC 4290 LAREDO TX
2012-10-04 956-898-5XXX 5000–5999Assigned STPCS JOINT VENTURE, LLC 4290 LAREDO TX
2012-10-04 956-898-6XXX 6000–6999Assigned STPCS JOINT VENTURE, LLC 4290 LAREDO TX
2012-09-28 956-529-2XXX 2000–2999Assigned STPCS JOINT VENTURE, LLC 4290 MISSION TX
2012-09-28 956-529-3XXX 3000–3999Assigned STPCS JOINT VENTURE, LLC 4290 MISSION TX
2012-09-27 956-252-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDINBURG TX
2012-09-27 956-252-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDINBURG TX
2012-09-27 956-252-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EDINBURG TX
2012-09-27 956-404-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BROWNSVL TX
2012-09-27 956-407-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BROWNSVL TX
2012-09-21 956-255-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EDCOUCH TX
2012-09-14 956-295-6XXX 6000–6999Assigned STPCS JOINT VENTURE, LLC 4290 BROWNSVL TX
2012-09-14 956-336-3XXX 3000–3999Assigned STPCS JOINT VENTURE, LLC 4290 BROWNSVL TX
2012-09-07 956-329-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EDINBURG TX
2012-08-15 956-261-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F WESLACO TX
2012-08-10 956-800-0XXX 0000–0999Assigned STPCS JOINT VENTURE, LLC 4290 MCALLEN TX
2012-08-03 956-616-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MCALLEN TX
2012-08-03 956-621-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BROWNSVL TX
2012-08-01 956-529-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MISSION TX
2012-07-24 956-529-9XXX 9000–9999Assigned STPCS JOINT VENTURE, LLC 4290 MISSION 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.