NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 314
T-MOBILE USA, INC. 729
NEW CINGULAR WIRELESS PCS, LLC - IL 581
ONVOY, LLC - MO 511
BANDWIDTH.COM CLEC, LLC - MO 360
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 204
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
2019-05-20 314-347-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SAPPINGTON MO
2019-05-20 314-370-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2019-05-20 314-501-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SAPPINGTON MO
2019-05-15 314-530-0XXX 0000–0999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-05-15 314-530-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-05-15 314-530-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-05-15 314-530-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-05-15 314-530-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-05-15 314-639-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E KIRKWOOD MO
2019-05-01 314-408-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2019-05-01 314-924-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-05-01 314-924-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-05-01 314-924-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-05-01 314-924-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-05-01 314-924-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-05-01 314-924-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-05-01 314-944-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-05-01 314-944-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-05-01 314-944-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-05-01 314-944-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-04-30 314-634-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-04-30 314-634-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-04-30 314-634-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-04-30 314-634-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-04-30 314-634-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-04-30 314-634-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-04-30 314-634-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-04-30 314-634-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-04-30 314-634-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-04-30 314-634-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-04-12 314-924-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2019-04-11 314-451-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2019-04-11 314-501-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SAPPINGTON MO
2019-04-09 314-370-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2019-04-09 314-501-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SAPPINGTON MO
2019-04-09 314-501-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SAPPINGTON MO
2019-03-12 314-798-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2019-03-12 314-798-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2019-03-12 314-798-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2019-03-05 314-451-8XXX 8000–8999Assigned TELNYX LLC 073H LADUE MO
2019-02-28 314-798-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-02-28 314-798-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2019-02-27 314-759-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-02-27 314-759-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-02-27 314-759-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-02-27 314-759-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-02-27 314-759-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-02-27 314-759-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-02-27 314-759-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-02-27 314-759-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO

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.