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 717
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2017-11-20 | 717-500-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | HERSHEY | PA |
| 2017-11-20 | 717-559-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | DAUPHIN | PA |
| 2017-11-20 | 717-607-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | LEWISTOWN | PA |
| 2017-11-20 | 717-641-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | PALMYRA | PA |
| 2017-11-20 | 717-702-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MIDDLETOWN | PA |
| 2017-11-20 | 717-876-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MILLERSVL | PA |
| 2017-11-20 | 717-971-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | SHELLSVL | PA |
| 2017-11-20 | 717-983-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | STRASBURG | PA |
| 2017-11-20 | 717-990-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LANDISVL | PA |
| 2017-06-19 | 717-708-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | LEBANON | PA |
| 2016-05-03 | 717-660-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | CHAMBERSBG | PA |
| 2016-05-03 | 717-696-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | LANCASTER | PA |
| 2016-05-03 | 717-696-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | LANCASTER | PA |
| 2016-05-03 | 717-791-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | MECHANCSBG | PA |
| 2016-05-03 | 717-791-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MECHANCSBG | PA |
| 2016-05-03 | 717-857-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | HARISBGZN1 | PA |
| 2016-05-03 | 717-857-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | HARISBGZN1 | PA |
| 2016-05-03 | 717-962-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | CARLISLE | PA |
| 2015-08-10 | 717-980-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | HARISBGZN1 | PA |
| 2013-12-23 | 717-516-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MECHANCSBG | PA |
| 2013-12-20 | 717-450-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LEBANON | PA |
| 2013-12-20 | 717-472-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | YORK | PA |
| 2013-12-20 | 717-501-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | RED LION | PA |
| 2013-12-20 | 717-504-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | CHAMBERSBG | PA |
| 2013-12-20 | 717-706-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | CARLISLE | PA |
| 2013-12-20 | 717-947-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LANCASTER | PA |
| 2013-12-20 | 717-969-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | HANOVER | PA |
| 2013-12-18 | 717-409-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HARISBGZN1 | PA |
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.