NumberResearchThousands-blocks in 509-415
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 509-415 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 509 blocks
Most active assignees, all time — NPA 509
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2009-05-22 | 509-415-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | WENATCHEE | WA |
| 2012-04-30 | 509-415-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | WENATCHEE | WA |
| 2012-09-14 | 509-415-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | WENATCHEE | WA |
| 2013-08-27 | 509-415-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA | 7274 | WENATCHEE | WA |
| 2026-07-10 | 509-415-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WENATCHEE | WA |
| 2014-11-19 | 509-415-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | WENATCHEE | WA |
| 2011-05-24 | 509-415-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - WA | 7146 | WENATCHEE | WA |
| 2018-06-11 | 509-415-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA | 7274 | WENATCHEE | WA |
| 2014-02-11 | 509-415-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | WENATCHEE | WA |
| 2013-03-14 | 509-415-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | WENATCHEE | WA |
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.