NumberResearchThousands-blocks in 803-430
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 803-430 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
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2005-11-15 | 803-430-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSTON | SC |
| 2005-11-15 | 803-430-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSTON | SC |
| 2009-05-14 | 803-430-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSTON | SC |
| 2010-04-08 | 803-430-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | JOHNSTON | SC |
| — | 803-430-4XXX | 4000–4999 | Available | JOHNSTON | SC | ||
| 2012-11-14 | 803-430-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | JOHNSTON | SC |
| 2013-02-05 | 803-430-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - SC | 077F | JOHNSTON | SC |
| 2013-02-06 | 803-430-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | JOHNSTON | SC |
| 2013-06-05 | 803-430-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SC | 6398 | JOHNSTON | SC |
| 2009-01-09 | 803-430-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SC | 077F | JOHNSTON | SC |
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.