NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/24/2026
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 724
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2018-05-18 | 724-603-6XXX | 6000–6999 | Assigned | CITIZENS TELECOM SOLUTIONS, LLC - PA | 050A | CONNELLSVL | PA |
| 2017-11-08 | 724-849-9XXX | 9000–9999 | Assigned | CITIZENS TELECOM SOLUTIONS, LLC - PA | 050A | MAMMOTH | PA |
| 2004-11-23 | 724-261-4XXX | 4000–4999 | Assigned | CITIZENS TELECOM SOLUTIONS, LLC - PA | 050A | GREENSBURG | PA |
| 2004-11-11 | 724-259-5XXX | 5000–5999 | Assigned | CITIZENS TELECOM SOLUTIONS, LLC - PA | 050A | LIGONIER | PA |
| 2004-11-11 | 724-365-3XXX | 3000–3999 | Assigned | CITIZENS TELECOM SOLUTIONS, LLC - PA | 050A | MTPLEASANT | PA |
| 2004-11-11 | 724-520-4XXX | 4000–4999 | Assigned | CITIZENS TELECOM SOLUTIONS, LLC - PA | 050A | LATROBE | PA |
| 2004-11-11 | 724-635-6XXX | 6000–6999 | Assigned | CITIZENS TELECOM SOLUTIONS, LLC - PA | 050A | YOUNGWOOD | PA |
| 2004-11-11 | 724-739-2XXX | 2000–2999 | Assigned | CITIZENS TELECOM SOLUTIONS, LLC - PA | 050A | DERRY | PA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.