NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2021-04-13 314-661-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SAPPINGTON MO
2021-04-13 314-661-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SAPPINGTON MO
2021-04-07 314-949-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F LADUE MO
2021-04-07 314-949-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F LADUE MO
2021-04-07 314-949-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F LADUE MO
2021-04-07 314-949-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F LADUE MO
2021-03-31 314-897-8XXX 8000–8999Assigned TWILIO INTERNATIONAL, INC. 506J ST LOUIS MO
2021-03-25 314-946-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 KIRKWOOD MO
2021-03-23 314-788-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2021-03-16 314-760-0XXX 0000–0999Assigned STRATUS NETWORKS 495J ST LOUIS MO
2021-03-15 314-949-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F LADUE MO
2021-03-10 314-784-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F MEHLVILLE MO
2021-03-08 314-784-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MEHLVILLE MO
2021-03-08 314-784-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MEHLVILLE MO
2021-03-03 314-463-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2021-03-03 314-784-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MEHLVILLE MO
2021-03-03 314-866-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2021-02-25 314-912-0XXX 0000–0999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2021-02-25 314-912-1XXX 1000–1999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2021-02-25 314-912-2XXX 2000–2999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2021-02-25 314-912-3XXX 3000–3999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2021-02-25 314-912-4XXX 4000–4999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2021-02-17 314-464-0XXX 0000–0999Assigned TELNYX LLC 073H OAKVILLE MO
2021-02-12 314-697-0XXX 0000–0999Assigned TELNYX LLC 073H KIRKWOOD MO
2021-02-12 314-784-0XXX 0000–0999Assigned TELNYX LLC 073H MEHLVILLE MO
2021-02-10 314-834-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F SAPPINGTON MO
2021-02-10 314-834-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F SAPPINGTON MO
2021-02-10 314-834-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F SAPPINGTON MO
2021-02-08 314-912-9XXX 9000–9999Assigned ONVOY, LLC - MO 093F ST LOUIS MO
2021-02-04 314-834-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SAPPINGTON MO
2021-02-04 314-834-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SAPPINGTON MO
2021-02-04 314-886-5XXX 5000–5999Assigned ONVOY, LLC - MO 093F CREVECOEUR MO
2021-02-04 314-886-6XXX 6000–6999Assigned ONVOY, LLC - MO 093F CREVECOEUR MO
2021-02-04 314-886-7XXX 7000–7999Assigned ONVOY, LLC - MO 093F CREVECOEUR MO
2021-02-04 314-886-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F CREVECOEUR MO
2021-01-27 314-820-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2021-01-25 314-857-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H ST LOUIS MO
2021-01-25 314-857-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ST LOUIS MO
2021-01-25 314-857-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ST LOUIS MO
2021-01-21 314-668-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2021-01-18 314-866-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LADUE MO
2021-01-12 314-784-8XXX 8000–8999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MEHLVILLE MO
2021-01-12 314-864-9XXX 9000–9999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CREVECOEUR MO
2020-12-18 314-864-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2020-12-18 314-864-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2020-12-18 314-864-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2020-12-18 314-864-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2020-12-18 314-864-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2020-12-18 314-864-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO
2020-12-18 314-864-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 CREVECOEUR MO

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.