NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-01-14 314-883-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2019-12-26 314-208-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2019-12-26 314-208-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2019-12-12 314-648-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2019-12-04 314-648-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-12-03 314-648-0XXX 0000–0999Assigned TELNYX LLC 073H CREVECOEUR MO
2019-11-19 314-671-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KIRKWOOD MO
2019-11-15 314-710-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-11-15 314-710-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-11-15 314-710-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-11-15 314-710-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-11-15 314-710-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-11-15 314-742-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 MEHLVILLE MO
2019-10-31 314-710-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2019-10-31 314-710-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2019-10-31 314-710-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2019-10-29 314-451-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F LADUE MO
2019-10-29 314-451-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F LADUE MO
2019-10-29 314-668-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2019-10-28 314-408-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F MEHLVILLE MO
2019-10-28 314-501-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F SAPPINGTON MO
2019-10-28 314-648-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F CREVECOEUR MO
2019-10-28 314-648-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F CREVECOEUR MO
2019-10-28 314-866-6XXX 6000–6999Assigned FRACTEL, LLC 965H LADUE MO
2019-10-28 314-946-3XXX 3000–3999Assigned FRACTEL, LLC 965H KIRKWOOD MO
2019-10-25 314-789-9XXX 9000–9999Assigned FRACTEL, LLC 965H CREVECOEUR MO
2019-10-21 314-796-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-10-21 314-796-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-10-21 314-796-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-10-21 314-796-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-10-21 314-796-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-10-21 314-796-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-10-21 314-796-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-10-21 314-796-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-10-21 314-796-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-10-21 314-796-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2019-10-16 314-671-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-10-16 314-671-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-10-16 314-671-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-10-16 314-671-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-10-16 314-671-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-10-14 314-668-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-10-14 314-668-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-10-14 314-668-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-10-14 314-668-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-10-11 314-788-8XXX 8000–8999Assigned FRACTEL, LLC 965H ST LOUIS MO
2019-09-26 314-648-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CREVECOEUR MO
2019-09-25 314-648-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2019-09-25 314-668-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-09-19 314-463-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LADUE MO

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.