NumberResearchRecent thousands-block assignments
19 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, last 30 days — NPA 417
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2004-11-24 | 417-247-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MT VIEW | MO |
| 2004-11-18 | 417-227-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SPRINGFLD | MO |
| 2004-11-12 | 417-497-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | MILO | MO |
| 2004-11-12 | 417-804-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | WHEATLAND | MO |
| 2004-11-09 | 417-302-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | ROCKAWYBCH | MO |
| 2004-11-09 | 417-304-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | KOSHKONONG | MO |
| 2004-11-09 | 417-333-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | PITTSBURG | MO |
| 2004-11-09 | 417-383-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | BUFFALO | MO |
| 2004-11-09 | 417-420-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | HURLEY | MO |
| 2004-11-09 | 417-446-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | LOUISBURG | MO |
| 2004-11-09 | 417-487-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | SCHELLCITY | MO |
| 2004-11-09 | 417-551-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | OZARK | MO |
| 2004-11-09 | 417-557-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | HERMITAGE | MO |
| 2004-11-09 | 417-566-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | PRESTON | MO |
| 2004-11-09 | 417-670-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | URBANA | MO |
| 2004-11-09 | 417-698-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | ELDORDOSPG | MO |
| 2004-11-09 | 417-792-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | THOMASVL | MO |
| 2004-11-09 | 417-797-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | DORA | MO |
| 2004-11-09 | 417-807-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | CAULFIELD | MO |
| 2004-11-09 | 417-821-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | THAYER | MO |
| 2004-11-09 | 417-969-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | CAPE FAIR | MO |
| 2004-11-09 | 417-984-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | SUMMERSVL | MO |
| 2004-11-02 | 417-270-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ALTON | MO |
| 2004-11-02 | 417-693-8XXX | 8000–8999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | SPRINGFLD | MO |
| 2004-10-28 | 417-248-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | REEDS SPG | MO |
| 2004-10-28 | 417-249-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | KIMBELNGCY | MO |
| 2004-10-28 | 417-259-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | MOUNTANGRV | MO |
| 2004-10-28 | 417-274-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | WESTPLAINS | MO |
| 2004-10-26 | 417-245-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | GALENA | MO |
| 2004-10-26 | 417-677-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | FORSYTH | MO |
| 2004-10-26 | 417-712-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | GAINESVL | MO |
| 2004-10-25 | 417-202-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | BLUE EYE | MO |
| 2004-10-25 | 417-203-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | CRANE | MO |
| 2004-10-25 | 417-270-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | ALTON | MO |
| 2004-10-25 | 417-440-5XXX | 5000–5999 | Assigned | RYSTEC, INC | 142C | AURORA | MO |
| 2004-10-13 | 417-973-0XXX | 0000–0999 | Assigned | RYSTEC, INC | 142C | BRANSON | MO |
| 2004-10-08 | 417-459-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2004-10-08 | 417-459-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2004-10-08 | 417-459-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2004-10-08 | 417-576-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2004-10-08 | 417-576-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2004-10-08 | 417-576-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2004-09-28 | 417-622-7XXX | 7000–7999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | JOPLIN | MO |
| 2004-09-27 | 417-274-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WESTPLAINS | MO |
| 2004-09-27 | 417-274-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | WESTPLAINS | MO |
| 2004-09-16 | 417-660-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | LAMAR | MO |
| 2004-06-24 | 417-696-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | BRANSON | MO |
| 2004-06-08 | 417-388-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | CARTHAGE | MO |
| 2004-05-18 | 417-389-9XXX | 9000–9999 | Assigned | AERIAL COMMUNICATIONS, INC. | 6701 | NEOSHO | MO |
| 2004-05-03 | 417-280-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | THAYER | MO |
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.