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 573
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2019-11-08 | 573-426-0XXX | 0000–0999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | ROLLA | MO |
| 2019-11-08 | 573-679-0XXX | 0000–0999 | Assigned | FIDELITY CABLEVISION, LLC | 3356 | BOURBON | MO |
| 2019-11-05 | 573-899-0XXX | 0000–0999 | Assigned | FIDELITY CABLEVISION, LLC | 3356 | ST JAMES | MO |
| 2012-09-05 | 573-842-2XXX | 2000–2999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | WAYNESVL | MO |
| 2012-09-05 | 573-842-4XXX | 4000–4999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | WAYNESVL | MO |
| 2009-01-13 | 573-451-3XXX | 3000–3999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | ST ROBERT | MO |
| 2006-10-13 | 573-458-3XXX | 3000–3999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | ROLLA | MO |
| 2005-01-24 | 573-202-2XXX | 2000–2999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | ROLLA | MO |
| 2004-05-03 | 573-458-6XXX | 6000–6999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | ROLLA | MO |
| 2004-01-21 | 573-458-7XXX | 7000–7999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | ROLLA | MO |
| 2004-01-21 | 573-458-8XXX | 8000–8999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | ROLLA | MO |
| 2002-09-04 | 573-426-4XXX | 4000–4999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | ROLLA | MO |
| 2002-06-19 | 573-433-2XXX | 2000–2999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | WAYNESVL | MO |
| 2002-06-18 | 573-451-2XXX | 2000–2999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | ST ROBERT | MO |
| 2002-06-18 | 573-452-2XXX | 2000–2999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | FTLENARDWD | MO |
| 2002-06-18 | 573-453-2XXX | 2000–2999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | SALEM | MO |
| 2002-06-18 | 573-456-2XXX | 2000–2999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | NEWBURG | MO |
| 2002-06-18 | 573-460-2XXX | 2000–2999 | Assigned | FIDELITY CABLEVISION, LLC | 3275 | RICHLAND | MO |
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.