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
2019-02-27 314-759-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-02-27 314-759-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2019-02-18 314-547-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2019-02-18 314-547-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2019-02-18 314-547-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2019-02-18 314-547-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2019-02-18 314-547-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2019-02-18 314-547-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2019-02-18 314-547-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2019-02-18 314-547-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2019-02-18 314-547-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2019-02-18 314-547-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 LADUE MO
2019-02-08 314-375-4XXX 4000–4999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F OAKVILLE MO
2019-01-31 314-820-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LADUE MO
2019-01-08 314-818-0XXX 0000–0999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-01-08 314-934-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2019-01-04 314-293-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F OAKVILLE MO
2019-01-04 314-293-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F OAKVILLE MO
2018-12-18 314-586-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-18 314-586-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-18 314-586-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-18 314-586-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-18 314-586-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-18 314-586-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-18 314-586-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-18 314-586-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-18 314-586-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-18 314-586-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-12 314-934-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2018-12-04 314-334-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F OAKVILLE MO
2018-12-04 314-334-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F OAKVILLE MO
2018-12-04 314-334-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F OAKVILLE MO
2018-12-04 314-549-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F OAKVILLE MO
2018-12-03 314-926-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-12-03 314-926-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KIRKWOOD MO
2018-11-29 314-501-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAPPINGTON MO
2018-11-28 314-370-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2018-11-28 314-370-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CREVECOEUR MO
2018-11-14 314-370-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CREVECOEUR MO
2018-11-14 314-934-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F ST LOUIS MO
2018-11-14 314-938-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F LADUE MO
2018-11-07 314-463-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D LADUE MO
2018-11-07 314-463-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D LADUE MO
2018-11-07 314-463-8XXX 8000–8999Assigned VONAGE AMERICA LLC 197D LADUE MO
2018-11-07 314-778-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D LADUE MO
2018-11-01 314-501-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SAPPINGTON MO
2018-10-30 314-408-2XXX 2000–2999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MEHLVILLE MO
2018-10-17 314-542-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CREVECOEUR MO
2018-10-16 314-375-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F OAKVILLE MO
2018-10-16 314-408-1XXX 1000–1999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MEHLVILLE 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.