NumberResearchThousands-blocks in 812-638
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 812-638 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 812 blocks
Most active assignees, all time — NPA 812
New assignments by month
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-07-21 | 812-638-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | SULLIVAN | IN |
| — | 812-638-1XXX | 1000–1999 | Available | SULLIVAN | IN | ||
| 2013-09-06 | 812-638-2XXX | 2000–2999 | Assigned | COMCAST IP PHONE, LLC | 318J | SULLIVAN | IN |
| 2012-03-21 | 812-638-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | SULLIVAN | IN |
| — | 812-638-4XXX | 4000–4999 | Reserved | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | SULLIVAN | IN |
| — | 812-638-5XXX | 5000–5999 | Available | SULLIVAN | IN | ||
| 2020-02-17 | 812-638-6XXX | 6000–6999 | Assigned | ONVOY, LLC - IN | 097D | SULLIVAN | IN |
| 2017-04-26 | 812-638-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SULLIVAN | IN |
| 2011-03-25 | 812-638-8XXX | 8000–8999 | Assigned | YMAX COMMUNICATIONS CORP. - IN | 352E | SULLIVAN | IN |
| 2011-03-25 | 812-638-9XXX | 9000–9999 | Assigned | YMAX COMMUNICATIONS CORP. - IN | 352E | SULLIVAN | IN |
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.