NumberResearchThousands-blocks in 508-952
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 508-952 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 508 blocks
Most active assignees, all time — NPA 508
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2008-11-10 | 508-952-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - MA | 990E | NORTON | MA |
| 2013-04-08 | 508-952-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | NORTON | MA |
| 2014-06-13 | 508-952-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | NORTON | MA |
| 2016-03-03 | 508-952-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MA | 892D | NORTON | MA |
| — | 508-952-4XXX | 4000–4999 | Reserved | TC SYSTEMS, INC. | 7135 | NORTON | MA |
| 2008-07-18 | 508-952-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | NORTON | MA |
| 2010-03-23 | 508-952-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MA | 892D | NORTON | MA |
| 2014-03-25 | 508-952-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | NORTON | MA |
| 2013-04-08 | 508-952-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | NORTON | MA |
| 2020-07-22 | 508-952-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MA | 892D | NORTON | 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.