NumberResearchThousands-blocks in 803-560
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 803-560 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 803 blocks
Most active assignees, all time — NPA 803
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2012-04-27 | 803-560-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - SC | 077F | LK WYLIE W | SC |
| 2024-01-09 | 803-560-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LK WYLIE W | SC |
| 2015-07-28 | 803-560-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - SC | 077F | LK WYLIE W | SC |
| 2009-10-30 | 803-560-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - SC | 8534 | LK WYLIE W | SC |
| 2016-03-17 | 803-560-4XXX | 4000–4999 | Assigned | ONVOY, LLC - SC | 548E | LK WYLIE W | SC |
| 2016-03-17 | 803-560-5XXX | 5000–5999 | Assigned | ONVOY, LLC - SC | 548E | LK WYLIE W | SC |
| 2017-05-08 | 803-560-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - SC | 077F | LK WYLIE W | SC |
| 2026-08-20 | 803-560-7XXX | 7000–7999 | Assigned | OPENTACT INC. | 824J | LK WYLIE W | SC |
| 2018-07-26 | 803-560-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - SC | 077F | LK WYLIE W | SC |
| 2018-08-22 | 803-560-9XXX | 9000–9999 | Assigned | ONVOY, LLC - SC | 548E | LK WYLIE W | SC |
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.