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
2018-10-16 314-926-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F KIRKWOOD MO
2018-10-05 314-462-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-10-05 314-462-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-10-05 314-462-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-10-05 314-462-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-10-05 314-462-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-10-05 314-462-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-10-05 314-926-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-10-05 314-926-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-10-05 314-926-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-10-05 314-926-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-10-01 314-926-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F KIRKWOOD MO
2018-09-25 314-347-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2018-09-25 314-347-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2018-09-25 314-370-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2018-09-25 314-408-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MEHLVILLE MO
2018-09-25 314-465-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-09-25 314-465-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-09-25 314-818-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-09-25 314-818-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-09-25 314-934-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-09-25 314-934-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-09-25 314-934-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-09-25 314-934-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-09-25 314-934-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-09-25 314-934-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-09-18 314-944-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2018-09-18 314-944-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2018-09-18 314-944-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2018-09-18 314-944-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2018-09-18 314-944-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2018-09-17 314-612-4XXX 4000–4999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2018-09-14 314-408-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K MEHLVILLE MO
2018-08-30 314-818-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2018-08-30 314-924-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2018-08-29 314-818-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2018-08-22 314-463-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LADUE MO
2018-08-20 314-370-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CREVECOEUR MO
2018-08-09 314-934-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2018-08-03 314-818-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2018-07-31 314-261-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2018-07-24 314-390-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2018-07-24 314-390-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2018-07-24 314-390-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2018-07-16 314-370-0XXX 0000–0999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CREVECOEUR MO
2018-07-10 314-390-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2018-07-09 314-390-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2018-07-09 314-390-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2018-07-09 314-390-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2018-07-09 314-410-7XXX 7000–7999Assigned METROPCS, INC. 5562 ST LOUIS 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.