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
2010-10-19 314-763-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2010-10-19 314-763-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2010-10-19 314-763-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2010-10-19 314-763-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2010-10-19 314-763-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2010-10-15 314-562-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-10-15 314-562-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-10-15 314-562-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-10-06 314-683-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2010-10-06 314-683-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2010-10-06 314-683-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2010-10-06 314-683-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2010-10-06 314-683-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2010-09-14 314-702-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2010-09-14 314-702-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2010-09-07 314-562-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-09-07 314-562-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-09-07 314-562-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-09-02 314-269-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2010-08-27 314-514-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2010-08-24 314-438-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2010-08-24 314-438-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2010-08-18 314-715-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J LADUE MO
2010-08-17 314-269-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ST LOUIS MO
2010-08-16 314-716-2XXX 2000–2999Assigned AT&T ENTERPRISES, LLC 516C LADUE MO
2010-08-10 314-553-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2010-07-14 314-200-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2010-07-14 314-270-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SAPPINGTON MO
2010-07-14 314-329-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2010-07-12 314-403-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 KIRKWOOD MO
2010-07-12 314-562-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-07-12 314-562-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-07-12 314-562-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-06-30 314-649-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MEHLVILLE MO
2010-06-28 314-473-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2010-06-25 314-269-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2010-06-25 314-338-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2010-06-25 314-536-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2010-06-25 314-675-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MEHLVILLE MO
2010-06-25 314-884-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2010-06-25 314-925-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2010-06-25 314-925-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2010-06-24 314-536-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2010-06-24 314-919-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-06-24 314-919-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-06-24 314-919-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-06-24 314-925-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2010-06-17 314-563-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LADUE MO
2010-06-17 314-563-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LADUE MO
2010-06-17 314-563-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LADUE 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.