NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 518
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-07-30 | 518-974-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | GLENSFALLS | NY |
| 2024-07-26 | 518-315-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ALTAMONT | NY |
| 2024-07-26 | 518-617-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | CAIRO | NY |
| 2024-07-26 | 518-749-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | AVERILL PK | NY |
| 2024-07-26 | 518-830-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | BERNE | NY |
| 2024-07-26 | 518-908-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | BRAINADSVL | NY |
| 2024-07-25 | 518-607-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | CLARKSVL | NY |
| 2024-07-25 | 518-667-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | HARTFORD | NY |
| 2024-07-25 | 518-808-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | FORT ANN | NY |
| 2024-07-25 | 518-849-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | DANNEMORA | NY |
| 2024-07-25 | 518-991-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | HUNTER | NY |
| 2024-07-24 | 518-645-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | PLATTSBG | NY |
| 2024-07-24 | 518-739-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | LAKEPLACID | NY |
| 2024-07-24 | 518-809-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | KEENE | NY |
| 2024-07-24 | 518-990-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | MOIRA | NY |
| 2024-07-23 | 518-838-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | TROY | NY |
| 2024-07-23 | 518-919-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | PUTNAM | NY |
| 2024-07-23 | 518-983-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | WILLSBORO | NY |
| 2021-09-24 | 518-666-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | STREGISFLS | NY |
| 2021-09-24 | 518-972-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | PRATTSVL | NY |
| 2021-09-22 | 518-508-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | FREEHOLD | NY |
| 2021-09-22 | 518-963-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WILLSBORO | NY |
| 2021-09-20 | 518-467-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ELENBGDPOT | NY |
| 2021-09-20 | 518-507-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | SCHUYLERVL | NY |
| 2021-09-20 | 518-916-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | GREENVILLE | NY |
| 2021-09-20 | 518-984-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | TICONDROGA | NY |
| 2021-09-20 | 518-987-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | GALWAY | NY |
| 2021-09-15 | 518-739-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | LAKEPLACID | NY |
| 2021-09-08 | 518-539-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | MECHANICVL | NY |
| 2020-12-09 | 518-220-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | COLONIE | NY |
| 2020-12-09 | 518-914-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SCHENCTADY | NY |
| 2020-05-13 | 518-219-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | PLATTSBG | NY |
| 2020-05-13 | 518-560-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | ALBANY | NY |
| 2020-05-13 | 518-646-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | ALBANY | NY |
| 2020-05-13 | 518-738-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | COLONIE | NY |
| 2020-05-13 | 518-804-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | GLENSFALLS | NY |
| 2019-03-28 | 518-760-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | GLENSFALLS | NY |
| 2019-03-28 | 518-807-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | ALBANY | NY |
| 2019-03-28 | 518-807-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ALBANY | NY |
| 2019-03-28 | 518-957-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | PLATTSBG | NY |
| 2017-06-15 | 518-556-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | COLONIE | NY |
| 2015-07-27 | 518-870-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ALBANY | NY |
| 2013-12-17 | 518-313-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | COLONIE | NY |
| 2013-12-17 | 518-350-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | SARATOGSPG | NY |
| 2013-12-17 | 518-405-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | PLATTSBG | NY |
| 2013-12-17 | 518-502-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | GLENSFALLS | NY |
| 2013-12-17 | 518-874-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | TROY | NY |
| 2013-12-17 | 518-952-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | SCHENCTADY | NY |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.