NumberResearchThousands-blocks in 413-517
This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/19/2026
The ten 1,000-number thousand-blocks inside prefix 413-517 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 413 blocks
Most active assignees, all time — NPA 413
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| — | 413-517-0XXX | 0000–0999 | Reserved | PAETEC ITEL, LLC | 829J | NORTHAMPTN | MA |
| — | 413-517-1XXX | 1000–1999 | Reserved | PAETEC ITEL, LLC | 829J | NORTHAMPTN | MA |
| — | 413-517-2XXX | 2000–2999 | Reserved | PAETEC ITEL, LLC | 829J | NORTHAMPTN | MA |
| — | 413-517-3XXX | 3000–3999 | Reserved | PAETEC ITEL, LLC | 829J | NORTHAMPTN | MA |
| 2017-08-11 | 413-517-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | NORTHAMPTN | MA |
| 2013-07-09 | 413-517-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | NORTHAMPTN | MA |
| 2014-06-04 | 413-517-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | NORTHAMPTN | MA |
| 2013-03-06 | 413-517-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | NORTHAMPTN | MA |
| 2013-03-22 | 413-517-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | NORTHAMPTN | MA |
| — | 413-517-9XXX | 9000–9999 | Reserved | PAETEC ITEL, LLC | 829J | NORTHAMPTN | MA |
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.