NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

19 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, last 30 days — NPA 417
ONVOY, LLC - MO 12
HD CARRIER LLC 4
OPENTACT INC. 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 1
BANDWIDTH.COM CLEC, LLC - MO 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
2017-03-30 417-709-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-03-30 417-709-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-03-30 417-709-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-03-21 417-383-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 BUFFALO MO
2017-03-15 417-952-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 JOPLIN MO
2017-03-08 417-260-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOUSTON MO
2017-02-27 417-371-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-02-27 417-371-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-02-27 417-371-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-02-01 417-371-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-02-01 417-371-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-02-01 417-371-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-02-01 417-371-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-02-01 417-371-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-02-01 417-660-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAMAR MO
2017-01-17 417-370-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-01-17 417-370-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-01-17 417-370-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-01-17 417-370-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-01-17 417-370-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2017-01-11 417-279-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LAMAR MO
2017-01-11 417-279-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - MO 993E LAMAR MO
2017-01-11 417-802-9XXX 9000–9999Assigned WINDSTREAM MISSOURI, INC. 1885 STOTTSCITY MO
2016-12-12 417-572-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 JOPLIN MO
2016-12-12 417-845-9XXX 9000–9999Assigned MCC TELEPHONY LLC 593K ANDERSON MO
2016-12-08 417-370-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 SPRINGFLD MO
2016-11-28 417-264-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MO 4932 THAYER MO
2016-11-17 417-370-2XXX 2000–2999Assigned METROPCS, INC. 5562 SPRINGFLD MO
2016-11-11 417-340-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-11-11 417-340-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-11-11 417-340-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-11-11 417-340-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-11-11 417-340-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-11-11 417-340-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-11-11 417-340-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-11-11 417-340-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-11-11 417-340-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-11-11 417-340-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-11-10 417-370-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD MO
2016-11-10 417-370-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGFLD MO
2016-11-04 417-370-9XXX 9000–9999Assigned METROPCS, INC. 5562 SPRINGFLD MO
2016-10-31 417-371-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SPRINGFLD MO
2016-10-26 417-258-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARIONVL MO
2016-10-26 417-258-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARIONVL MO
2016-10-26 417-680-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 7218 JOPLIN MO
2016-10-21 417-671-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - MO 6123 CASSVILLE MO
2016-10-04 417-204-1XXX 1000–1999Assigned UNITED STATES CELLULAR - MO 6275 WESTPLAINS MO
2016-09-26 417-821-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 THAYER MO
2016-09-19 417-306-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD MO
2016-09-19 417-306-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO 5814 SPRINGFLD 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.