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 202
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-04-05 | 202-982-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2019-04-11 | 202-788-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2019-04-11 | 202-788-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2016-09-20 | 202-866-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2016-09-20 | 202-866-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2016-02-10 | 202-851-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2015-09-11 | 202-876-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2014-09-19 | 202-795-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2013-08-07 | 202-864-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2009-06-03 | 202-570-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2008-08-11 | 202-658-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
| 2007-05-14 | 202-629-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WSHNGTNZN1 | DC |
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.