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
2016-06-01 314-682-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2016-06-01 314-756-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2016-06-01 314-756-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2016-05-27 314-320-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2016-05-19 314-396-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2016-05-09 314-386-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2016-05-06 314-396-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2016-04-21 314-756-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SAPPINGTON MO
2016-04-14 314-405-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2016-04-01 314-396-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2016-04-01 314-396-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2016-04-01 314-396-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2016-04-01 314-396-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2016-03-31 314-756-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2016-03-31 314-985-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2016-03-25 314-778-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2016-03-16 314-701-0XXX 0000–0999Assigned METROPCS, INC. 5562 MEHLVILLE MO
2016-03-16 314-701-1XXX 1000–1999Assigned METROPCS, INC. 5562 MEHLVILLE MO
2016-03-16 314-701-2XXX 2000–2999Assigned METROPCS, INC. 5562 MEHLVILLE MO
2016-03-16 314-797-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2016-03-14 314-701-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MEHLVILLE MO
2016-03-14 314-701-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MEHLVILLE MO
2016-03-14 314-701-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MEHLVILLE MO
2016-03-14 314-939-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MEHLVILLE MO
2016-03-11 314-858-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KIRKWOOD MO
2016-03-08 314-274-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2016-03-01 314-776-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2016-02-25 314-778-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J LADUE MO
2016-02-24 314-356-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2016-02-19 314-376-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2016-02-19 314-376-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2016-02-19 314-376-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2016-02-19 314-391-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2016-02-19 314-391-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2016-02-17 314-376-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 ST LOUIS MO
2016-02-16 314-549-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F OAKVILLE MO
2016-02-16 314-549-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F OAKVILLE MO
2016-02-12 314-701-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F MEHLVILLE MO
2016-02-12 314-701-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F MEHLVILLE MO
2016-02-09 314-778-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J LADUE MO
2016-02-08 314-376-1XXX 1000–1999Assigned METROPCS, INC. 5562 ST LOUIS MO
2016-02-08 314-376-6XXX 6000–6999Assigned METROPCS, INC. 5562 ST LOUIS MO
2016-02-08 314-376-7XXX 7000–7999Assigned METROPCS, INC. 5562 ST LOUIS MO
2016-02-08 314-379-2XXX 2000–2999Assigned METROPCS, INC. 5562 ST LOUIS MO
2016-02-01 314-628-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F CREVECOEUR MO
2016-02-01 314-682-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F CREVECOEUR MO
2016-01-27 314-376-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2016-01-27 314-626-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F KIRKWOOD MO
2016-01-27 314-626-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F KIRKWOOD MO
2016-01-26 314-376-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K 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.