NumberResearchRecent thousands-block assignments
17 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
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, last 30 days — NPA 606
New assignments by month
Sep 2026
Aug 2026
Jul 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2004-04-30 | 606-259-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | ALLEN | KY |
| 2004-04-30 | 606-392-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | MT VERNON | KY |
| 2004-04-30 | 606-393-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | ASHLAND | KY |
| 2004-04-30 | 606-394-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | SCIENCE HL | KY |
| 2004-04-30 | 606-536-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | WHITESBURG | KY |
| 2004-04-30 | 606-547-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | MEADS | KY |
| 2004-04-30 | 606-619-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | BARBOURVL | KY |
| 2004-04-30 | 606-657-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | LONDON | KY |
| 2004-04-30 | 606-658-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | MANCHESTER | KY |
| 2004-04-30 | 606-824-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | JACKSON | KY |
| 2004-04-30 | 606-879-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | STANFORD | KY |
| 2004-04-30 | 606-887-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PAINTSVL | KY |
| 2004-04-30 | 606-930-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | BURNSIDE | KY |
| 2004-04-09 | 606-261-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CORBIN | KY |
| 2004-03-26 | 606-235-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | HUSTONVL | KY |
| 2004-03-26 | 606-341-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | BURNSIDE | KY |
| 2004-03-26 | 606-342-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | SALT LICK | KY |
| 2004-02-10 | 606-219-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SOMERSET | KY |
| 2004-01-07 | 606-224-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LONDON | KY |
| 2003-11-11 | 606-310-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | STNSWHLYCY | KY |
| 2003-09-11 | 606-219-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | SOMERSET | KY |
| 2003-06-11 | 606-622-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | BARBOURVL | KY |
| 2003-06-04 | 606-261-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | CORBIN | KY |
| 2003-04-30 | 606-278-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MONTICELLO | KY |
| 2003-04-03 | 606-262-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PIKEVILLE | KY |
| 2003-04-03 | 606-620-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | CORBIN | KY |
| 2003-04-03 | 606-654-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | PINEVILLE | KY |
| — | 606-576-0XXX | 0000–0999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | MIDDLESBO | KY |
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.