NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

15 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 931
ONVOY, LLC - TN 13
INTRADO COMMUNICATIONS, LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2019-07-08 931-291-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CLARKSVL TN
2019-07-08 931-291-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CLARKSVL TN
2019-06-25 931-253-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F WAYNESBORO TN
2019-06-25 931-256-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F SPARTA TN
2019-06-21 931-701-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 LYLES TN
2019-06-19 931-915-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WINCHESTER TN
2019-05-24 931-777-1XXX 1000–1999Assigned ONVOY, LLC - TN 525E COLUMBIA TN
2019-05-24 931-777-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E COLUMBIA TN
2019-05-24 931-999-0XXX 0000–0999Assigned ONVOY, LLC - TN 525E CLARKSVL TN
2019-05-24 931-999-1XXX 1000–1999Assigned ONVOY, LLC - TN 525E CLARKSVL TN
2019-05-24 931-999-8XXX 8000–8999Assigned ONVOY, LLC - TN 525E CLARKSVL TN
2019-05-13 931-551-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F CLARKSVL TN
2019-05-09 931-208-8XXX 8000–8999Assigned TELNYX LLC 073H MCEWEN TN
2019-05-09 931-236-0XXX 0000–0999Assigned TELNYX LLC 073H FREDONIA TN
2019-05-09 931-354-8XXX 8000–8999Assigned TELNYX LLC 073H FLINTVILLE TN
2019-05-09 931-382-0XXX 0000–0999Assigned TELNYX LLC 073H HAMPSHIRE TN
2019-05-09 931-387-9XXX 9000–9999Assigned TELNYX LLC 073H CUNNINGHAM TN
2019-05-09 931-389-2XXX 2000–2999Assigned TELNYX LLC 073H WARTRACE TN
2019-05-09 931-410-9XXX 9000–9999Assigned TELNYX LLC 073H PALMYRA TN
2019-05-09 931-441-8XXX 8000–8999Assigned TELNYX LLC 073H LYNNVILLE TN
2019-05-09 931-442-8XXX 8000–8999Assigned TELNYX LLC 073H SANTA FE TN
2019-05-09 931-567-8XXX 8000–8999Assigned TELNYX LLC 073H CULLEOKA TN
2019-05-09 931-666-1XXX 1000–1999Assigned TELNYX LLC 073H CUMBERLDCY TN
2019-05-09 931-706-8XXX 8000–8999Assigned TELNYX LLC 073H WILLIAMSPT TN
2019-05-09 931-717-4XXX 4000–4999Assigned TELNYX LLC 073H BLANCHE TN
2019-05-09 931-740-8XXX 8000–8999Assigned TELNYX LLC 073H NORMANDY TN
2019-05-09 931-764-8XXX 8000–8999Assigned TELNYX LLC 073H W VANLEER TN
2019-05-09 931-810-9XXX 9000–9999Assigned TELNYX LLC 073H HUNTLAND TN
2019-04-29 931-240-8XXX 8000–8999Assigned TELNYX LLC 073H FAYETTEVL TN
2019-04-24 931-291-6XXX 6000–6999Assigned ONVOY, LLC - TN 525E CLARKSVL TN
2019-04-24 931-899-0XXX 0000–0999Assigned ONVOY, LLC - TN 525E LYNCHBURG TN
2019-04-23 931-597-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F LEWISBURG TN
2019-04-23 931-871-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 LIVINGSTON TN
2019-04-17 931-355-9XXX 9000–9999Assigned METROPCS, INC. 5562 SOOAKGROVE TN
2019-04-09 931-333-3XXX 3000–3999Assigned FRACTEL, LLC 965H TRACY CITY TN
2019-03-27 931-324-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F LAWRENCEBG TN
2019-02-26 931-271-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F MCMINNVL TN
2019-02-20 931-777-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F COLUMBIA TN
2019-01-23 931-777-7XXX 7000–7999Assigned FRACTEL, LLC 965H COLUMBIA TN
2019-01-21 931-999-9XXX 9000–9999Assigned FRACTEL, LLC 965H CLARKSVL TN
2019-01-18 931-584-1XXX 1000–1999Assigned POWERTEL NASHVILLE LICENSES, INC. 7476 MONTEREY TN
2019-01-18 931-584-2XXX 2000–2999Assigned POWERTEL NASHVILLE LICENSES, INC. 7476 MONTEREY TN
2019-01-16 931-236-1XXX 1000–1999Assigned ONVOY, LLC - TN 525E FREDONIA TN
2019-01-16 931-382-1XXX 1000–1999Assigned ONVOY, LLC - TN 525E HAMPSHIRE TN
2019-01-14 931-740-1XXX 1000–1999Assigned ONVOY, LLC - TN 525E NORMANDY TN
2019-01-14 931-901-2XXX 2000–2999Assigned ONVOY, LLC - TN 525E COLUMBIA TN
2019-01-11 931-263-7XXX 7000–7999Assigned ONVOY, LLC - TN 525E CLARKSVL TN
2019-01-11 931-283-3XXX 3000–3999Assigned ONVOY, LLC - TN 525E WINCHESTER TN
2019-01-11 931-283-4XXX 4000–4999Assigned ONVOY, LLC - TN 525E WINCHESTER TN
2019-01-11 931-324-4XXX 4000–4999Assigned ONVOY, LLC - TN 525E LAWRENCEBG 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.