NumberResearchThousands-blocks in 385-289
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 385-289 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 385 blocks
Most active assignees, all time — NPA 385
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-07-29 | 385-289-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - UT | 117F | OGDEN | UT |
| 2016-07-29 | 385-289-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - UT | 117F | OGDEN | UT |
| 2016-08-04 | 385-289-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | OGDEN | UT |
| 2016-11-28 | 385-289-3XXX | 3000–3999 | Assigned | ONVOY, LLC - UT | 871E | OGDEN | UT |
| 2017-01-06 | 385-289-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - UT | 6571 | OGDEN | UT |
| 2016-11-28 | 385-289-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | OGDEN | UT |
| 2017-08-28 | 385-289-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | OGDEN | UT |
| 2016-10-04 | 385-289-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | OGDEN | UT |
| 2016-10-04 | 385-289-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | OGDEN | UT |
| 2016-10-04 | 385-289-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | OGDEN | UT |
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.