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
2013-04-15 314-736-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2013-04-15 314-736-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2013-04-12 314-696-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2013-04-08 314-526-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F KIRKWOOD MO
2013-04-08 314-526-3XXX 3000–3999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F KIRKWOOD MO
2013-04-05 314-317-0XXX 0000–0999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CREVECOEUR MO
2013-04-05 314-380-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F OAKVILLE MO
2013-04-05 314-380-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F OAKVILLE MO
2013-04-05 314-439-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CREVECOEUR MO
2013-04-05 314-449-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2013-04-05 314-449-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2013-04-05 314-675-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MEHLVILLE MO
2013-04-05 314-675-7XXX 7000–7999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MEHLVILLE MO
2013-04-05 314-748-0XXX 0000–0999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SAPPINGTON MO
2013-04-05 314-748-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SAPPINGTON MO
2013-04-04 314-736-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2013-03-27 314-384-1XXX 1000–1999Assigned NUSO, LLC 551G CREVECOEUR MO
2013-03-27 314-387-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2013-03-27 314-414-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2013-03-27 314-449-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2013-03-27 314-526-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E KIRKWOOD MO
2013-03-27 314-637-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2013-03-27 314-643-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2013-03-27 314-695-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2013-03-21 314-696-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2013-03-21 314-696-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2013-03-20 314-449-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2013-03-20 314-449-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2013-03-20 314-449-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2013-03-20 314-449-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2013-03-20 314-449-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2013-03-08 314-696-0XXX 0000–0999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2013-03-08 314-696-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2013-03-04 314-449-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ST LOUIS MO
2013-03-04 314-526-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 KIRKWOOD MO
2013-03-04 314-526-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 KIRKWOOD MO
2013-03-04 314-526-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 KIRKWOOD MO
2013-03-04 314-526-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 KIRKWOOD MO
2013-02-26 314-695-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2013-02-22 314-449-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2013-02-22 314-529-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 CREVECOEUR MO
2013-02-20 314-305-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-02-20 314-305-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-02-20 314-305-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-02-20 314-305-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-02-20 314-305-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-02-20 314-305-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-02-20 314-305-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-02-20 314-305-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2013-02-20 314-305-8XXX 8000–8999Assigned 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.