NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 219
New assignments by month
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2013-10-17 | 219-209-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MOROCCO | IN |
| 2013-10-17 | 219-215-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | LAKE VLG | IN |
| 2013-10-17 | 219-225-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | LOWELL | IN |
| 2013-10-17 | 219-237-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HIGHLAND | IN |
| 2013-10-17 | 219-267-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | CEDAR LAKE | IN |
| 2013-10-17 | 219-323-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CROWNPOINT | IN |
| 2013-10-17 | 219-370-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | WHITING | IN |
| 2013-10-17 | 219-515-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | DYER | IN |
| 2013-10-17 | 219-627-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | ST JOHN | IN |
| 2013-10-17 | 219-648-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MERRILLVL | IN |
| 2013-10-17 | 219-702-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | GARY | IN |
| 2013-10-17 | 219-802-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HAMMOND | IN |
| 2013-10-17 | 219-804-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | E CHICAGO | 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.