NumberResearchThousands-blocks in 606-448
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026
The ten 1,000-number thousand-blocks inside prefix 606-448 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 606 blocks
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 |
|---|---|---|---|---|---|---|---|
| 2013-06-25 | 606-448-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | LIBERTY | KY |
| 2017-01-11 | 606-448-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | LIBERTY | KY |
| 2016-05-05 | 606-448-2XXX | 2000–2999 | Assigned | ONVOY, LLC - KY | 896E | LIBERTY | KY |
| 2016-11-10 | 606-448-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LIBERTY | KY |
| 2012-01-30 | 606-448-4XXX | 4000–4999 | Assigned | WINDSTREAM KENTUCKY EAST, INC. - LEXINGTON | 9690 | LIBERTY | KY |
| 2016-05-05 | 606-448-5XXX | 5000–5999 | Assigned | ONVOY, LLC - KY | 896E | LIBERTY | KY |
| 2014-04-29 | 606-448-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - KY | 4369 | LIBERTY | KY |
| 2017-09-05 | 606-448-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - KY | 8406 | LIBERTY | KY |
| 2020-06-17 | 606-448-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | LIBERTY | KY |
| 2016-06-03 | 606-448-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | LIBERTY | 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.