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
2014-02-19 931-632-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LYNCHBURG TN
2014-02-19 931-652-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J PETERSBURG TN
2014-02-19 931-683-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CULLEOKA TN
2014-02-19 931-717-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 BLANCHE TN
2014-02-19 931-771-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J SOOAKGROVE TN
2014-02-19 931-807-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NORMANDY TN
2014-02-19 931-810-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 HUNTLAND TN
2014-02-19 931-813-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WARTRACE TN
2014-02-19 931-952-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MANCHESTER TN
2014-02-19 931-981-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J COLUMBIA TN
2013-12-17 931-371-4XXX 4000–4999Assigned POWERTEL NASHVILLE LICENSES, INC. 7476 PULASKI TN
2013-12-17 931-371-5XXX 5000–5999Assigned POWERTEL NASHVILLE LICENSES, INC. 7476 PULASKI TN
2013-12-11 931-516-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CUMBERLDCY TN
2013-12-10 931-450-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 7977 MANCHESTER TN
2013-12-06 931-202-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CROSSVILLE TN
2013-12-06 931-221-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CLARKSVL TN
2013-12-06 931-316-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 SPENCER TN
2013-11-07 931-310-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 GAINESBORO TN
2013-11-07 931-981-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 COLUMBIA TN
2013-10-17 931-257-9XXX 9000–9999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLARKSVL TN
2013-10-08 931-408-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 TULLAHOMA TN
2013-10-01 931-546-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 7977 SOOAKGROVE TN
2013-09-12 931-792-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FLINTVILLE TN
2013-08-28 931-278-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF TENNESSEE, LLC - TN 7517 CLARKSVL TN
2013-08-23 931-378-5XXX 5000–5999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CLARKSVL TN
2013-08-23 931-422-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K LEWISBURG TN
2013-08-21 931-292-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 PULASKI TN
2013-08-05 931-326-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F PALMYRA TN
2013-07-09 931-257-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CLARKSVL TN
2013-07-09 931-981-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 COLUMBIA TN
2013-06-26 931-300-0XXX 0000–0999Assigned POWERTEL NASHVILLE LICENSES, INC. 7476 LAWRENCEBG TN
2013-06-13 931-310-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 GAINESBORO TN
2013-06-10 931-264-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 WAVERLY TN
2013-06-10 931-675-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 PETERSBURG TN
2013-05-30 931-709-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 W VANLEER TN
2013-05-29 931-221-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TN 124F CLARKSVL TN
2013-05-28 931-650-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 COOKEVILLE TN
2013-05-21 931-431-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J SOOAKGROVE TN
2013-05-16 931-347-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TN 4806 PULASKI TN
2013-05-14 931-202-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CROSSVILLE TN
2013-05-14 931-548-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COLUMBIA TN
2013-05-09 931-551-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 CLARKSVL TN
2013-05-09 931-691-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 SEWANEE TN
2013-04-29 931-254-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 SPENCER TN
2013-04-24 931-259-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MCMINNVL TN
2013-04-24 931-259-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 MCMINNVL TN
2013-04-23 931-742-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 6673 TANSI TN
2013-04-19 931-408-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F TULLAHOMA TN
2013-04-03 931-651-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K COOKEVILLE TN
2013-03-26 931-487-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TN 114F SPRINGHILL 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.