NumberResearchThousands-blocks in 781-463
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 781-463 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 781 blocks
Most active assignees, all time — NPA 781
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-04-08 | 781-463-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | LYNNFIELD | MA |
| 2005-08-29 | 781-463-1XXX | 1000–1999 | Assigned | PAETEC ITEL, LLC | 829J | LYNNFIELD | MA |
| — | 781-463-2XXX | 2000–2999 | Available | LYNNFIELD | MA | ||
| 2026-08-18 | 781-463-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LYNNFIELD | MA |
| — | 781-463-4XXX | 4000–4999 | Available | LYNNFIELD | MA | ||
| 2012-02-16 | 781-463-5XXX | 5000–5999 | Assigned | ONVOY, LLC - MA | 892D | LYNNFIELD | MA |
| — | 781-463-6XXX | 6000–6999 | Reserved | PAETEC ITEL, LLC | 829J | LYNNFIELD | MA |
| — | 781-463-7XXX | 7000–7999 | Available | LYNNFIELD | MA | ||
| 2013-04-08 | 781-463-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | LYNNFIELD | MA |
| 2015-09-28 | 781-463-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LYNNFIELD | 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.