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 959
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-06-25 | 959-260-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WILLIMNTIC | CT |
| 2024-06-25 | 959-466-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WASHINGTON | CT |
| 2024-06-25 | 959-933-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WINSTED | CT |
| 2024-06-25 | 959-946-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | STAFFD SPG | CT |
| 2024-06-25 | 959-988-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | TORRINGTON | CT |
| 2024-06-24 | 959-234-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | NORWICH | CT |
| 2024-06-24 | 959-238-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | PUTNAM | CT |
| 2024-06-24 | 959-253-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PLAINFIELD | CT |
| 2024-06-24 | 959-261-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | SOUTHINGTN | CT |
| 2024-06-24 | 959-266-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PAWCATUCK | CT |
| 2024-06-24 | 959-269-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | NOTHOMPSON | CT |
| 2024-06-24 | 959-588-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | NIANTIC | CT |
| 2024-06-24 | 959-910-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MYSTIC | CT |
| 2024-06-24 | 959-952-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | SHARON | CT |
| 2024-06-21 | 959-516-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | KENT | CT |
| 2024-06-21 | 959-566-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | LEBANON | CT |
| 2024-06-21 | 959-610-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | HARWINTON | CT |
| 2024-06-21 | 959-678-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | KILLINGWTH | CT |
| 2024-06-21 | 959-810-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | MOODUS | CT |
| 2024-06-21 | 959-936-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LYME | CT |
| 2024-06-21 | 959-949-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | JEWETTCITY | CT |
| 2024-06-21 | 959-966-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LAKEVILLE | CT |
| 2024-06-14 | 959-410-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | COLCHESTER | CT |
| 2024-06-14 | 959-912-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | CANTERBURY | CT |
| 2024-06-14 | 959-916-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | THOMASTON | CT |
| 2024-06-12 | 959-244-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FARMINGTON | CT |
| 2024-06-12 | 959-268-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | GLASTONBY | CT |
| 2024-06-12 | 959-356-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HADDAM | CT |
| 2024-06-11 | 959-220-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ESSEX | CT |
| 2024-06-11 | 959-263-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | DEEP RIVER | CT |
| 2024-06-11 | 959-426-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | COVENTRY | CT |
| 2024-06-11 | 959-866-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | CANTON | CT |
| 2024-06-11 | 959-885-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | ENFIELD | CT |
| 2024-06-11 | 959-922-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | E HAMPTON | CT |
| 2022-07-15 | 959-243-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | ROCKVILLE | CT |
| 2022-07-15 | 959-716-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | NEW LONDON | CT |
| 2022-07-15 | 959-837-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | NORWICH | CT |
| 2021-04-02 | 959-221-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HARTFORD | CT |
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.