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
2012-10-17 314-399-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2012-10-17 314-399-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2012-10-17 314-399-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2012-10-17 314-942-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2012-10-11 314-296-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2012-10-11 314-296-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2012-10-11 314-296-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2012-10-11 314-296-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2012-10-11 314-296-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2012-10-10 314-281-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2012-10-04 314-287-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 KIRKWOOD MO
2012-10-03 314-300-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2012-10-03 314-300-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2012-09-27 314-300-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ST LOUIS MO
2012-09-24 314-200-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2012-09-24 314-200-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2012-09-19 314-300-1XXX 1000–1999Assigned SOUTHWESTERN BELL 9533 ST LOUIS MO
2012-09-13 314-675-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2012-09-13 314-675-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2012-09-11 314-296-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2012-09-11 314-942-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2012-08-24 314-380-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 OAKVILLE MO
2012-08-13 314-594-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2012-07-27 314-287-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K KIRKWOOD MO
2012-07-26 314-548-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 CREVECOEUR MO
2012-07-26 314-548-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 CREVECOEUR MO
2012-07-24 314-261-4XXX 4000–4999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2012-07-19 314-942-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2012-07-13 314-441-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2012-07-12 314-492-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2012-07-12 314-492-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2012-07-12 314-492-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2012-07-05 314-287-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 KIRKWOOD MO
2012-07-05 314-492-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2012-07-05 314-720-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 CREVECOEUR MO
2012-06-25 314-548-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CREVECOEUR MO
2012-06-25 314-666-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F LADUE MO
2012-06-15 314-441-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2012-05-30 314-287-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E KIRKWOOD MO
2012-05-30 314-492-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2012-05-24 314-300-0XXX 0000–0999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2012-05-24 314-300-3XXX 3000–3999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2012-05-24 314-666-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F LADUE MO
2012-05-16 314-888-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F LADUE MO
2012-05-16 314-888-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F LADUE MO
2012-05-16 314-888-4XXX 4000–4999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F LADUE MO
2012-05-16 314-888-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F LADUE MO
2012-04-09 314-942-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J LADUE MO
2012-04-02 314-502-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 ST LOUIS MO
2012-04-02 314-502-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 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.