NumberResearchThousands-blocks in 317-348
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 317-348 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 317 blocks
Most active assignees, last 30 days — NPA 317
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-08-19 | 317-348-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | FISHERS | IN |
| 2004-12-29 | 317-348-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | FISHERS | IN |
| 2005-08-19 | 317-348-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | FISHERS | IN |
| 2008-05-20 | 317-348-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | FISHERS | IN |
| — | 317-348-4XXX | 4000–4999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | FISHERS | IN |
| 2008-05-13 | 317-348-5XXX | 5000–5999 | Assigned | ONVOY, LLC - IN | 097D | FISHERS | IN |
| 2026-04-27 | 317-348-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IN | 097D | FISHERS | IN |
| 2026-09-10 | 317-348-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | FISHERS | IN |
| 2008-05-13 | 317-348-8XXX | 8000–8999 | Assigned | ONVOY, LLC - IN | 097D | FISHERS | IN |
| 2007-08-08 | 317-348-9XXX | 9000–9999 | Assigned | LEVEL 3 TELECOM OF INDIANA, LP - IN | 7060 | FISHERS | IN |
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.