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
2018-07-09 314-924-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2018-06-28 314-624-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2018-06-28 314-624-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2018-06-28 314-624-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2018-06-28 314-624-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2018-06-08 314-528-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2018-06-05 314-410-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2018-06-05 314-410-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2018-06-01 314-528-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2018-05-23 314-225-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2018-05-23 314-778-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2018-05-23 314-778-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2018-05-23 314-778-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2018-05-23 314-830-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2018-05-23 314-931-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2018-05-23 314-931-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2018-05-23 314-938-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2018-05-23 314-938-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2018-05-23 314-938-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2018-05-18 314-257-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2018-05-07 314-528-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2018-05-04 314-347-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2018-05-04 314-347-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2018-04-30 314-257-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2018-03-06 314-390-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2018-03-06 314-465-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2018-03-06 314-818-8XXX 8000–8999Assigned METROPCS, INC. 5562 ST LOUIS MO
2018-03-06 314-924-1XXX 1000–1999Assigned EXIANT COMMUNICATIONS LLC 114J ST LOUIS MO
2018-03-06 314-930-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2018-02-15 314-347-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F SAPPINGTON MO
2018-02-06 314-257-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2018-02-06 314-257-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2018-02-06 314-257-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2018-02-06 314-257-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2018-02-06 314-257-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2018-02-06 314-257-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2018-02-06 314-257-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2018-02-06 314-257-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2017-12-27 314-410-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2017-12-21 314-462-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F KIRKWOOD MO
2017-12-04 314-624-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2017-12-04 314-624-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2017-12-04 314-624-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2017-12-01 314-462-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KIRKWOOD MO
2017-11-07 314-624-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2017-11-07 314-624-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2017-11-07 314-624-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2017-11-03 314-405-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2017-11-03 314-461-8XXX 8000–8999Assigned METROPCS, INC. 5562 MEHLVILLE MO
2017-11-03 314-465-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 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.