NumberResearchThousands-blocks in 812-228
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 812-228 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
Sep 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2007-06-20 | 812-228-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | EVANSVILLE | IN |
| 2016-06-06 | 812-228-1XXX | 1000–1999 | Assigned | AT&T ENTERPRISES, LLC | 516C | EVANSVILLE | IN |
| — | 812-228-2XXX | 2000–2999 | Reserved | INDIANA BELL TEL CO INC | 9325 | EVANSVILLE | IN |
| — | 812-228-3XXX | 3000–3999 | Reserved | INDIANA BELL TEL CO INC | 9325 | EVANSVILLE | IN |
| 2010-05-06 | 812-228-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | EVANSVILLE | IN |
| 2008-08-06 | 812-228-5XXX | 5000–5999 | Assigned | RCN TELECOM SERVICES OF ILLINOIS, LLC | 511K | EVANSVILLE | IN |
| 2005-10-24 | 812-228-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | EVANSVILLE | IN |
| 2005-10-24 | 812-228-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | EVANSVILLE | IN |
| 2010-06-04 | 812-228-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | EVANSVILLE | IN |
| 2006-07-20 | 812-228-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | EVANSVILLE | 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.