NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

7 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, last 30 days — NPA 615
ONVOY, LLC - TN 5
PEERLESS NETWORK OF TENNESSEE, LLC - TN 1
BANDWIDTH.COM CLEC, LLC - TN 1
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
2020-03-02 615-664-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NASHVILLE TN
2020-03-02 615-726-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NASHVILLE TN
2020-03-02 615-734-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NASHVILLE TN
2020-03-02 615-736-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NASHVILLE TN
2020-03-02 615-736-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NASHVILLE TN
2020-03-02 615-747-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NASHVILLE TN
2020-03-02 615-748-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NASHVILLE TN
2020-03-02 615-749-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 NASHVILLE TN
2020-02-27 615-471-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E LAVERGNE TN
2020-02-27 615-471-7XXX 7000–7999Assigned ONVOY, LLC - TN 525E LAVERGNE TN
2020-02-27 615-488-5XXX 5000–5999Assigned ONVOY, LLC - TN 525E ADMSCDARHL TN
2020-02-27 615-488-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E ADMSCDARHL TN
2020-02-27 615-551-4XXX 4000–4999Assigned ONVOY, LLC - TN 525E SPENCERMIL TN
2020-02-27 615-551-9XXX 9000–9999Assigned ONVOY, LLC - TN 525E SPENCERMIL TN
2020-02-27 615-637-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E SCUNNINGHA TN
2020-02-27 615-637-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E SCUNNINGHA TN
2020-02-06 615-912-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F HENDERSNVL TN
2020-02-06 615-912-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F HENDERSNVL TN
2020-02-06 615-912-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F HENDERSNVL TN
2020-01-28 615-640-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F EAGLEVILLE TN
2020-01-25 615-813-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F CRSPLORLND TN
2020-01-15 615-780-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F NASHVILLE TN
2020-01-03 615-560-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E DICKSON TN
2020-01-03 615-560-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E DICKSON TN
2019-12-16 615-607-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENGROVE TN
2019-12-16 615-607-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 GREENGROVE TN
2019-12-12 615-551-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E SPENCERMIL TN
2019-12-12 615-551-5XXX 5000–5999Assigned ONVOY, LLC - TN 525E SPENCERMIL TN
2019-11-21 615-795-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 NASHVILLE TN
2019-11-21 615-795-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 NASHVILLE TN
2019-11-21 615-795-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 NASHVILLE TN
2019-11-21 615-795-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 NASHVILLE TN
2019-11-21 615-795-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 NASHVILLE TN
2019-11-19 615-558-5XXX 5000–5999Assigned ONVOY, LLC - TN 525E LAVERGNE TN
2019-11-19 615-701-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E MT JULIET TN
2019-11-14 615-362-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OAK GROVE TN
2019-11-14 615-362-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 OAK GROVE TN
2019-11-11 615-795-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F NASHVILLE TN
2019-10-31 615-359-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE TN
2019-10-31 615-359-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LAFAYETTE TN
2019-10-29 615-795-0XXX 0000–0999Assigned ONVOY, LLC - TN 525E NASHVILLE TN
2019-09-30 615-229-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E DICKSON TN
2019-09-30 615-553-0XXX 0000–0999Assigned ONVOY, LLC - TN 525E MT JULIET TN
2019-09-30 615-657-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E ASHLAND CY TN
2019-09-13 615-488-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E ADMSCDARHL TN
2019-09-13 615-488-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E ADMSCDARHL TN
2019-09-13 615-576-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E VANLEER TN
2019-09-13 615-576-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E VANLEER TN
2019-09-12 615-619-9XXX 9000–9999Assigned VONAGE AMERICA LLC 197D PLEASANTVW TN
2019-09-03 615-795-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 NASHVILLE TN

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.