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
2010-06-17 314-563-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 LADUE MO
2010-06-17 314-662-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2010-06-17 314-662-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2010-05-27 314-219-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 LADUE MO
2010-05-26 314-403-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E KIRKWOOD MO
2010-05-21 314-925-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2010-05-19 314-433-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2010-05-19 314-514-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2010-05-19 314-527-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2010-05-19 314-527-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2010-05-19 314-527-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2010-05-19 314-527-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2010-05-19 314-527-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2010-05-19 314-561-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2010-05-19 314-828-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2010-05-19 314-828-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2010-05-19 314-828-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2010-05-19 314-877-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2010-05-19 314-881-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2010-05-18 314-737-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-05-18 314-737-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-05-18 314-737-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-04-26 314-394-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E KIRKWOOD MO
2010-04-21 314-471-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 KIRKWOOD MO
2010-04-14 314-227-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2010-04-05 314-485-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2010-03-25 314-529-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J CREVECOEUR MO
2010-03-22 314-828-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J ST LOUIS MO
2010-03-22 314-828-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J ST LOUIS MO
2010-03-19 314-400-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J LADUE MO
2010-03-19 314-400-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J LADUE MO
2010-03-12 314-737-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LADUE MO
2010-03-10 314-561-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2010-03-10 314-561-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2010-03-04 314-925-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J ST LOUIS MO
2010-02-23 314-238-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E KIRKWOOD MO
2010-02-12 314-266-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 LADUE MO
2010-01-27 314-246-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2010-01-27 314-329-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2010-01-27 314-467-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E SAPPINGTON MO
2010-01-27 314-884-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2010-01-27 314-884-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E ST LOUIS MO
2010-01-19 314-216-3XXX 3000–3999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F LADUE MO
2010-01-19 314-375-8XXX 8000–8999Assigned ONVOY, LLC - MO 093F OAKVILLE MO
2010-01-19 314-433-6XXX 6000–6999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F MEHLVILLE MO
2010-01-19 314-453-3XXX 3000–3999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F CREVECOEUR MO
2010-01-19 314-467-4XXX 4000–4999Assigned PEERLESS NETWORK OF MISSOURI, LLC - MO 225F SAPPINGTON MO
2009-12-29 314-925-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C ST LOUIS MO
2009-12-28 314-400-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J LADUE MO
2009-12-28 314-400-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J 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.