NumberResearchThousands-blocks in 570-917
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 570-917 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 570 blocks
Most active assignees, all time — NPA 570
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2016-08-31 | 570-917-0XXX | 0000–0999 | Assigned | ONVOY, LLC - PA | 547E | SUNBURY | PA |
| 2016-08-31 | 570-917-1XXX | 1000–1999 | Assigned | ONVOY, LLC - PA | 547E | SUNBURY | PA |
| 2016-05-23 | 570-917-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | SUNBURY | PA |
| 2017-04-19 | 570-917-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA | 6392 | SUNBURY | PA |
| 2018-05-02 | 570-917-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - PA | 002F | SUNBURY | PA |
| 2024-01-11 | 570-917-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SUNBURY | PA |
| 2024-02-09 | 570-917-6XXX | 6000–6999 | Assigned | ONVOY, LLC - PA | 547E | SUNBURY | PA |
| 2016-01-07 | 570-917-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SUNBURY | PA |
| 2018-02-16 | 570-917-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF PENNSYLVANIA, LLC - PA | 967E | SUNBURY | PA |
| 2016-01-05 | 570-917-9XXX | 9000–9999 | Assigned | D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE | 6846 | SUNBURY | PA |
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.