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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-10-05 | 606-509-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | PIKEVILLE | KY |
| 2023-03-20 | 606-227-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | GRAYSON | KY |
| 2021-09-22 | 606-887-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | PAINTSVL | KY |
| 2021-09-15 | 606-215-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | CORBIN | KY |
| 2021-09-09 | 606-566-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | STAFORDSVL | KY |
| 2021-06-22 | 606-947-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | STANTON | KY |
| 2021-01-22 | 606-255-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | GRAYSON | KY |
| 2021-01-22 | 606-744-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | ASHLAND | KY |
| 2019-12-13 | 606-449-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | MIDDLESBO | KY |
| 2019-02-22 | 606-887-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | PAINTSVL | KY |
| 2017-08-11 | 606-552-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | PIKEVILLE | KY |
| 2013-05-14 | 606-441-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | PINEVILLE | KY |
| 2011-03-09 | 606-802-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | SOMERSET | KY |
| 2011-03-03 | 606-261-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | CORBIN | KY |
| 2011-02-23 | 606-657-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | LONDON | KY |
| 2010-02-10 | 606-261-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CORBIN | KY |
| 2010-02-02 | 606-260-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | LONDON | KY |
| 2009-10-29 | 606-231-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | LONDON | KY |
| 2008-11-25 | 606-425-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SOMERSET | KY |
| 2007-11-26 | 606-657-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | LONDON | KY |
| 2006-02-21 | 606-499-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | MIDDLESBO | KY |
| 2006-02-21 | 606-622-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | BARBOURVL | KY |
| 2006-02-21 | 606-654-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | PINEVILLE | KY |
| 2005-11-03 | 606-231-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | LONDON | KY |
| 2005-08-19 | 606-271-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SOMERSET | KY |
| 2005-03-15 | 606-219-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | SOMERSET | KY |
| 2005-02-02 | 606-682-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | LONDON | KY |
| 2004-05-18 | 606-219-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | SOMERSET | KY |
| 2004-05-18 | 606-224-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | LONDON | KY |
| 2003-06-11 | 606-622-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | BARBOURVL | KY |
| 2003-04-30 | 606-278-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MONTICELLO | 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.