NumberResearchThousands-blocks in 413-559
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 413-559 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
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2006-11-01 | 413-559-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHRSTFKLN | MA |
| 2005-08-05 | 413-559-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHRSTFKLN | MA |
| 2015-03-16 | 413-559-2XXX | 2000–2999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AMHRSTFKLN | MA |
| 2006-10-04 | 413-559-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | AMHRSTFKLN | MA |
| — | 413-559-4XXX | 4000–4999 | Reserved | TC SYSTEMS, INC. | 7135 | AMHRSTFKLN | MA |
| — | 413-559-5XXX | 5000–5999 | Reserved | TC SYSTEMS, INC. | 7135 | AMHRSTFKLN | MA |
| — | 413-559-6XXX | 6000–6999 | Reserved | TC SYSTEMS, INC. | 7135 | AMHRSTFKLN | MA |
| 2005-08-05 | 413-559-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHRSTFKLN | MA |
| 2006-11-01 | 413-559-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHRSTFKLN | MA |
| 2008-01-29 | 413-559-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | AMHRSTFKLN | MA |
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.