NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 606
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-04-10 | 606-440-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | VANCEBURG | KY |
| 2024-12-10 | 606-242-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | MIDDLESBO | KY |
| 2023-12-13 | 606-402-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | AUGUSTA | KY |
| 2023-01-24 | 606-334-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | HYDEN | KY |
| 2022-12-07 | 606-393-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | ASHLAND | KY |
| 2022-09-20 | 606-393-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | ASHLAND | KY |
| 2022-05-20 | 606-206-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | MT OLIVET | KY |
| 2022-05-20 | 606-217-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | BROOKSVL | KY |
| 2022-05-20 | 606-221-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | HUSTONVL | KY |
| 2022-05-20 | 606-301-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | WASHINGTON | KY |
| 2022-05-20 | 606-323-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | INEZ | KY |
| 2022-05-20 | 606-659-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | OWINGSVL | KY |
| 2022-05-20 | 606-707-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | ONEIDA | KY |
| 2022-05-20 | 606-715-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | TOLLESBORO | KY |
| 2022-05-20 | 606-960-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | WHITE LILY | KY |
| 2022-05-19 | 606-396-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | MONTICELLO | KY |
| 2022-04-19 | 606-291-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | FLEMINGSBG | KY |
| 2021-07-20 | 606-910-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | HAZARD | KY |
| 2021-04-23 | 606-865-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | CATLETTSBG | KY |
| 2021-04-12 | 606-313-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PIKEVILLE | KY |
| 2020-07-07 | 606-744-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | ASHLAND | KY |
| 2020-03-23 | 606-428-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | WILLIAMSBG | KY |
| 2020-02-04 | 606-240-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | OLIVE HILL | KY |
| 2019-10-16 | 606-385-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | ASHLAND | KY |
| 2019-09-03 | 606-385-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | ASHLAND | KY |
| 2019-06-06 | 606-462-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | MOREHEAD | KY |
| 2019-02-20 | 606-727-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PIKEVILLE | KY |
| 2018-11-16 | 606-517-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PINE KNOT | KY |
| 2018-06-15 | 606-517-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PINE KNOT | KY |
| 2018-06-15 | 606-588-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | STNSWHLYCY | KY |
| 2018-02-27 | 606-371-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | ASHLAND | KY |
| 2018-02-22 | 606-727-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PIKEVILLE | KY |
| 2017-07-26 | 606-331-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | ASHLAND | KY |
| 2017-06-13 | 606-388-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | RUSSELL | KY |
| 2016-12-28 | 606-498-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | SOUTHSHORE | KY |
| 2016-04-29 | 606-254-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | MEADS | KY |
| 2016-04-29 | 606-637-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PIKEVILLE | KY |
| 2015-07-28 | 606-492-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | SOMERSET | KY |
| 2015-04-08 | 606-658-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | MANCHESTER | KY |
| 2015-03-31 | 606-262-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PIKEVILLE | KY |
| 2014-11-28 | 606-767-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | LONDON | KY |
| 2014-04-29 | 606-448-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | LIBERTY | KY |
| 2014-04-29 | 606-614-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | IRVINE | KY |
| 2014-04-09 | 606-225-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | OLIVE HILL | KY |
| 2014-04-09 | 606-560-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | BEATTYVL | KY |
| 2014-04-09 | 606-898-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | GRAYSON | KY |
| 2014-04-08 | 606-268-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | JELLICO | KY |
| 2013-12-17 | 606-254-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | MEADS | KY |
| 2013-10-04 | 606-653-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PIKEVILLE | KY |
| 2013-10-04 | 606-947-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | STANTON | KY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.