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 845
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 |
|---|---|---|---|---|---|---|---|
| 2021-03-05 | 845-813-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | CLINTONDL | NY |
| 2020-08-05 | 845-560-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | ELLENVILLE | NY |
| 2016-07-29 | 845-400-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | SPRING VLY | NY |
| 2016-07-29 | 845-403-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | SPRING VLY | NY |
| 2016-07-29 | 845-403-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | SPRING VLY | NY |
| 2016-07-29 | 845-403-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | SPRING VLY | NY |
| 2016-07-29 | 845-403-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | SPRING VLY | NY |
| 2016-07-29 | 845-630-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | CARMEL | NY |
| 2016-07-29 | 845-630-3XXX | 3000–3999 | Assigned | HD CARRIER LLC | 321J | CARMEL | NY |
| 2016-07-29 | 845-630-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | CARMEL | NY |
| 2016-07-29 | 845-630-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | CARMEL | NY |
| 2014-07-08 | 845-269-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | HAVERSTRAW | NY |
| 2014-07-08 | 845-277-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | CROTON FLS | NY |
| 2014-07-08 | 845-287-2XXX | 2000–2999 | Assigned | HD CARRIER LLC | 321J | CARMEL | NY |
| 2014-07-08 | 845-400-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | SPRING VLY | NY |
| 2014-07-08 | 845-422-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | NEW CITY | NY |
| 2014-07-08 | 845-504-4XXX | 4000–4999 | Assigned | HD CARRIER LLC | 321J | SUFFERN | NY |
| 2014-07-08 | 845-507-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | NANUET | NY |
| 2014-07-08 | 845-600-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | MAHOPAC | NY |
| 2014-07-08 | 845-643-6XXX | 6000–6999 | Assigned | HD CARRIER LLC | 321J | NYACK | NY |
| 2014-07-08 | 845-731-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | PEARLRIVER | NY |
| 2014-07-08 | 845-737-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | PEEKSKILL | NY |
| 2014-07-08 | 845-759-9XXX | 9000–9999 | Assigned | HD CARRIER LLC | 321J | SLOATSBURG | NY |
| 2014-07-08 | 845-808-8XXX | 8000–8999 | Assigned | HD CARRIER LLC | 321J | BREWSTER | NY |
| 2013-03-12 | 845-363-5XXX | 5000–5999 | Assigned | HD CARRIER LLC | 321J | BREWSTER | 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.