NumberResearchRecent thousands-block assignments
12 blocks assigned in December 2025 · 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, December 2025 — NPA 417
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-12-29 | 417-584-1XXX | 1000–1999 | Assigned | E. RITTER COMMUNICATIONS, LLC | 128L | SPRINGFLD | MO |
| 2025-12-19 | 417-382-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | JOPLIN | MO |
| 2025-12-17 | 417-717-3XXX | 3000–3999 | Assigned | ONVOY, LLC - MO | 093F | WEBB CITY | MO |
| 2025-12-17 | 417-924-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MANSFIELD | MO |
| 2025-12-15 | 417-382-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JOPLIN | MO |
| 2025-12-03 | 417-558-0XXX | 0000–0999 | Assigned | WAVENATION, LLC | 700J | SPRINGFLD | MO |
| 2025-12-03 | 417-810-1XXX | 1000–1999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | BRANSON W | MO |
| 2025-12-01 | 417-375-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | NOEL | MO |
| 2025-12-01 | 417-524-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | SHELL KNOB | MO |
| 2025-12-01 | 417-641-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | HIGHLANDVL | MO |
| 2025-12-01 | 417-706-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | JOPLIN | MO |
| 2025-12-01 | 417-852-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | PITTSBURG | 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.