NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

5 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 409
ONVOY, LLC - TX 3
TELNYX LLC 1
AHOI LLC 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2010-11-24 409-400-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K WINNIE TX
2010-11-23 409-300-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K PORTARTHUR TX
2010-11-18 409-449-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 EVADALE TX
2010-11-10 409-434-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 BEAUMONT TX
2010-11-01 409-474-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 BRIDGECITY TX
2010-11-01 409-681-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 VIDOR TX
2010-10-29 409-229-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C TXSCYMARQU TX
2010-10-29 409-737-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C GALVESTON TX
2010-10-29 409-777-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C PT BOLIVAR TX
2010-10-25 409-242-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 BEAUMONT TX
2010-10-12 409-373-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 SILSBEE TX
2010-09-23 409-234-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BEAUMONT TX
2010-09-21 409-998-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BEAUMONT TX
2010-09-07 409-373-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SILSBEE TX
2010-08-16 409-440-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HTCHCCKSNF TX
2010-08-10 409-554-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K BEAUMONT TX
2010-08-04 409-236-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2010-08-04 409-236-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2010-08-04 409-236-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2010-08-04 409-236-3XXX 3000–3999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2010-08-04 409-236-4XXX 4000–4999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2010-08-04 409-236-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2010-08-04 409-236-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2010-08-04 409-236-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2010-08-04 409-236-8XXX 8000–8999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2010-08-04 409-236-9XXX 9000–9999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2010-07-27 409-224-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 JASPER TX
2010-07-26 409-239-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BEAUMONT TX
2010-06-18 409-224-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 JASPER TX
2010-05-27 409-234-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BEAUMONT TX
2010-05-27 409-234-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BEAUMONT TX
2010-05-27 409-373-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SILSBEE TX
2010-05-27 409-422-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 VIDOR TX
2010-05-07 409-234-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BEAUMONT TX
2010-05-05 409-761-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 GALVESTON TX
2010-04-20 409-239-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BEAUMONT TX
2010-03-17 409-239-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BEAUMONT TX
2010-03-17 409-622-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 KIRBYVILLE TX
2010-03-01 409-239-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BEAUMONT TX
2010-02-08 409-233-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MAURICEVL TX
2010-02-08 409-276-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 EVADALE TX
2010-02-08 409-622-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KIRBYVILLE TX
2010-01-20 409-238-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ORANGE TX
2010-01-18 409-227-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LUMBERTON TX
2010-01-15 409-460-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PORTARTHUR TX
2010-01-12 409-237-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 NDLDPTNCHS TX
2010-01-06 409-927-3XXX 3000–3999Assigned FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 4344 HTCHCCKSNF TX
2009-11-11 409-332-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PORTARTHUR TX
2009-10-13 409-988-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ORANGE TX
2009-09-23 409-434-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BEAUMONT 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.