NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2014-12-09 314-384-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2014-12-09 314-548-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2014-12-09 314-628-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E CREVECOEUR MO
2014-12-08 314-782-9XXX 9000–9999Assigned METROPCS, INC. 5562 MEHLVILLE MO
2014-12-08 314-885-2XXX 2000–2999Assigned METROPCS, INC. 5562 MEHLVILLE MO
2014-12-08 314-885-9XXX 9000–9999Assigned METROPCS, INC. 5562 MEHLVILLE MO
2014-12-05 314-329-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2014-12-05 314-329-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2014-12-05 314-649-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2014-12-05 314-649-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E MEHLVILLE MO
2014-12-03 314-349-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2014-12-03 314-349-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2014-11-24 314-896-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2014-11-24 314-896-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2014-11-24 314-896-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2014-11-24 314-896-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ST LOUIS MO
2014-11-20 314-551-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LADUE MO
2014-11-10 314-325-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2014-11-10 314-551-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2014-11-10 314-666-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2014-11-10 314-666-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2014-11-10 314-666-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2014-11-10 314-666-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2014-11-10 314-793-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2014-11-10 314-793-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2014-11-10 314-793-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2014-11-10 314-793-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2014-11-10 314-793-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2014-11-10 314-793-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2014-11-10 314-942-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LADUE MO
2014-11-04 314-736-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2014-11-04 314-736-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2014-11-04 314-764-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2014-11-04 314-764-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LADUE MO
2014-10-31 314-349-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MO 7432 ST LOUIS MO
2014-10-20 314-349-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2014-10-20 314-349-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2014-10-20 314-349-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2014-10-20 314-349-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2014-10-20 314-349-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2014-10-20 314-349-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2014-10-14 314-312-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2014-10-14 314-312-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2014-10-14 314-312-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST LOUIS MO
2014-10-06 314-312-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ST LOUIS MO
2014-09-29 314-312-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 ST LOUIS MO
2014-09-26 314-688-0XXX 0000–0999Assigned METROPCS, INC. 5562 ST LOUIS MO
2014-09-26 314-688-1XXX 1000–1999Assigned METROPCS, INC. 5562 ST LOUIS MO
2014-09-26 314-688-2XXX 2000–2999Assigned METROPCS, INC. 5562 ST LOUIS MO
2014-09-26 314-688-3XXX 3000–3999Assigned METROPCS, INC. 5562 ST LOUIS MO

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.