NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 515
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2022-03-23 | 515-529-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | COLFAX | IA |
| 2022-03-23 | 515-843-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | CLARE | IA |
| 2022-03-23 | 515-946-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ELKHART | IA |
| 2022-03-14 | 515-228-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | SLATER | IA |
| 2022-03-14 | 515-377-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | EARLHAM | IA |
| 2022-03-14 | 515-442-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | INDIANOLA | IA |
| 2022-03-14 | 515-464-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | MCCALLSBG | IA |
| 2022-03-14 | 515-466-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | WHITTEMORE | IA |
| 2022-03-14 | 515-666-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DES MOINES | IA |
| 2022-03-14 | 515-667-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GOWRIE | IA |
| 2022-03-14 | 515-788-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PERRY | IA |
| 2022-03-14 | 515-848-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | PLEASANTVL | IA |
| 2022-03-04 | 515-626-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BOONE | IA |
| 2022-03-04 | 515-862-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | STORY CITY | IA |
| 2022-03-01 | 515-896-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | RIPPEY | IA |
| 2022-02-22 | 515-622-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GILMORE CY | IA |
| 2022-02-21 | 515-366-6XXX | 6000–6999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DEXTER | IA |
| 2022-02-21 | 515-426-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | DE SOTO | IA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.