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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-04-27 409-984-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 PORTARTHUR TX
2007-04-20 409-233-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K MAURICEVL TX
2007-04-20 409-768-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K SOUTHVIDOR TX
2007-04-19 409-349-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K DEWEYVILLE TX
2007-04-05 409-316-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J HTCHCCKSNF TX
2007-04-02 409-443-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2007-04-02 409-443-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2007-03-26 409-920-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ORANGE TX
2007-03-15 409-213-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K SABINEPASS TX
2007-03-08 409-920-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K ORANGE TX
2007-02-21 409-548-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 PORTARTHUR TX
2007-02-08 409-526-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2007-02-08 409-526-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2007-02-08 409-526-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2007-02-08 409-526-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2007-02-08 409-526-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2007-02-08 409-526-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2007-01-29 409-698-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JASPER TX
2007-01-18 409-554-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEAUMONT TX
2007-01-16 409-571-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BUNA TX
2007-01-15 409-497-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2007-01-15 409-497-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2007-01-11 409-296-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K WINNIE TX
2007-01-10 409-209-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K KOUNTZE TX
2006-12-20 409-443-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2006-12-20 409-443-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GALVESTON TX
2006-12-11 409-548-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 PORTARTHUR TX
2006-12-04 409-655-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J TXSCYMARQU TX
2006-12-04 409-974-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J GALVESTON TX
2006-11-14 409-365-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTARTHUR TX
2006-11-03 409-594-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JASPER TX
2006-10-30 409-853-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K NDLDPTNCHS TX
2006-10-26 409-289-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BUNA TX
2006-10-25 409-332-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 PORTARTHUR TX
2006-09-19 409-548-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K PORTARTHUR TX
2006-09-15 409-540-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 NDLDPTNCHS TX
2006-09-14 409-316-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 HTCHCCKSNF TX
2006-09-07 409-548-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 PORTARTHUR TX
2006-09-07 409-548-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 PORTARTHUR TX
2006-08-25 409-497-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J GALVESTON TX
2006-08-23 409-332-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PORTARTHUR TX
2006-08-23 409-422-2XXX 2000–2999Assigned METROPCS, INC. 5562 VIDOR TX
2006-08-22 409-527-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 NDLDPTNCHS TX
2006-08-18 409-289-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BUNA TX
2006-08-14 409-594-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JASPER TX
2006-07-27 409-617-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2006-07-27 409-617-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2006-07-27 409-617-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 BEAUMONT TX
2006-06-13 409-330-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ORANGE TX
2006-06-13 409-548-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTARTHUR 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.