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 838
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-09-05 | 838-205-2XXX | 2000–2999 | Assigned | IP HORIZON LLC | 515J | VALLEY FLS | NY |
| 2024-09-05 | 838-228-5XXX | 5000–5999 | Assigned | IP HORIZON LLC | 515J | WINDHAM | NY |
| 2024-08-30 | 838-257-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | ATHENS | NY |
| 2024-08-30 | 838-263-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | VALLEY FLS | NY |
| 2024-08-30 | 838-738-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | PHILMONT | NY |
| 2024-08-30 | 838-830-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | ESPERANCE | NY |
| 2024-08-30 | 838-858-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | HAGUE | NY |
| 2024-08-30 | 838-938-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | PORT HENRY | NY |
| 2024-07-30 | 838-291-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | ALBANY | NY |
| 2024-07-26 | 838-287-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BALLSTNSPA | NY |
| 2024-07-26 | 838-345-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | ARGYLE | NY |
| 2024-07-26 | 838-883-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CASTLETON | NY |
| 2024-07-26 | 838-944-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CATSKILL | NY |
| 2024-07-26 | 838-966-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | BOLTON LDG | NY |
| 2024-07-25 | 838-204-7XXX | 7000–7999 | Assigned | IP HORIZON LLC | 515J | HAMPTON | NY |
| 2024-07-25 | 838-227-6XXX | 6000–6999 | Assigned | IP HORIZON LLC | 515J | CENTRALBDG | NY |
| 2024-07-25 | 838-247-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | ELENBGDPOT | NY |
| 2024-07-25 | 838-248-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | COBLESKILL | NY |
| 2024-07-25 | 838-258-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | FREEHOLD | NY |
| 2024-07-25 | 838-273-4XXX | 4000–4999 | Assigned | IP HORIZON LLC | 515J | HUDSON | NY |
| 2024-07-25 | 838-290-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | COLONIE | NY |
| 2024-07-25 | 838-334-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | GREENWICH | NY |
| 2024-07-25 | 838-372-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | GREENVILLE | NY |
| 2024-07-25 | 838-399-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | GRANVILLE | NY |
| 2024-07-25 | 838-435-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | CLAVERACK | NY |
| 2024-07-25 | 838-588-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | DELANSON | NY |
| 2024-07-25 | 838-831-3XXX | 3000–3999 | Assigned | IP HORIZON LLC | 515J | ELIZABTHTN | NY |
| 2024-07-25 | 838-835-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | CHATEAUGAY | NY |
| 2024-07-24 | 838-235-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | LEXINGTON | NY |
| 2024-07-24 | 838-244-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | OAK HILL | NY |
| 2024-07-24 | 838-252-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | PALENVILLE | NY |
| 2024-07-24 | 838-272-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | MECHANICVL | NY |
| 2024-07-24 | 838-276-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | GALWAY | NY |
| 2024-07-24 | 838-282-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LYON MT | NY |
| 2024-07-24 | 838-285-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MALONE | NY |
| 2024-07-24 | 838-331-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | FTCOVINGTN | NY |
| 2024-07-24 | 838-377-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | PRATTSVL | NY |
| 2024-07-24 | 838-380-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | LAKEGEORGE | NY |
| 2024-07-24 | 838-385-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | MINEVILLE | NY |
| 2024-07-24 | 838-638-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | MARIAVILLE | NY |
| 2024-07-23 | 838-233-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SARANAC LK | NY |
| 2024-07-23 | 838-236-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | RICHMONDVL | NY |
| 2024-07-23 | 838-237-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | TICONDROGA | NY |
| 2024-07-23 | 838-242-9XXX | 9000–9999 | Assigned | IP HORIZON LLC | 515J | WARRENSBG | NY |
| 2024-07-23 | 838-243-8XXX | 8000–8999 | Assigned | IP HORIZON LLC | 515J | WESTERLO | NY |
| 2024-07-23 | 838-254-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SARANAC | NY |
| 2024-07-23 | 838-255-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | TUPPERLAKE | NY |
| 2024-07-23 | 838-271-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SCHROON LK | NY |
| 2024-07-23 | 838-278-0XXX | 0000–0999 | Assigned | IP HORIZON LLC | 515J | SCHUYLERVL | NY |
| 2024-07-23 | 838-283-1XXX | 1000–1999 | Assigned | IP HORIZON LLC | 515J | VOORHEESVL | NY |
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.