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 557
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-02-11 | 557-567-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO |
| 2025-02-11 | 557-567-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO |
| 2025-02-11 | 557-567-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO |
| 2025-02-11 | 557-567-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO |
| 2025-02-07 | 557-207-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | OAKVILLE | MO |
| 2025-01-08 | 557-228-6XXX | 6000–6999 | Assigned | ONVOY, LLC - MO | 093F | ST LOUIS | MO |
| 2025-01-08 | 557-567-1XXX | 1000–1999 | Assigned | ONVOY, LLC - MO | 093F | KIRKWOOD | MO |
| 2025-01-03 | 557-231-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2025-01-03 | 557-231-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2025-01-03 | 557-231-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2025-01-03 | 557-231-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2025-01-03 | 557-231-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2025-01-03 | 557-231-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2025-01-03 | 557-231-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2025-01-03 | 557-231-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2024-12-30 | 557-230-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SAPPINGTON | MO |
| 2024-12-30 | 557-230-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SAPPINGTON | MO |
| 2024-12-30 | 557-230-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SAPPINGTON | MO |
| 2024-12-30 | 557-230-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SAPPINGTON | MO |
| 2024-12-30 | 557-230-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SAPPINGTON | MO |
| 2024-12-30 | 557-230-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SAPPINGTON | MO |
| 2024-12-13 | 557-222-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | ST LOUIS | MO |
| 2024-12-09 | 557-218-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2024-12-09 | 557-218-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2024-12-09 | 557-223-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2024-12-09 | 557-223-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | LADUE | MO |
| 2024-12-02 | 557-219-6XXX | 6000–6999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LADUE | MO |
| 2024-12-02 | 557-219-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | LADUE | MO |
| 2024-11-27 | 557-229-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO |
| 2024-11-27 | 557-229-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO |
| 2024-11-27 | 557-229-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO |
| 2024-11-27 | 557-229-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KIRKWOOD | MO |
| 2024-11-25 | 557-228-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MO | 5814 | ST LOUIS | MO |
| 2024-11-20 | 557-215-7XXX | 7000–7999 | Assigned | ONVOY, LLC - MO | 093F | ST LOUIS | MO |
| 2024-11-20 | 557-215-9XXX | 9000–9999 | Assigned | ONVOY, LLC - MO | 093F | ST LOUIS | MO |
| 2024-11-20 | 557-567-0XXX | 0000–0999 | Assigned | ONVOY, LLC - MO | 093F | KIRKWOOD | MO |
| 2024-11-13 | 557-204-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST LOUIS | MO |
| 2024-11-13 | 557-204-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST LOUIS | MO |
| 2024-11-13 | 557-213-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST LOUIS | MO |
| 2024-11-13 | 557-213-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST LOUIS | MO |
| 2024-11-13 | 557-213-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST LOUIS | MO |
| 2024-11-13 | 557-213-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST LOUIS | MO |
| 2024-11-13 | 557-213-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST LOUIS | MO |
| 2024-11-13 | 557-215-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ST LOUIS | MO |
| 2024-11-07 | 557-212-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MEHLVILLE | MO |
| 2024-11-07 | 557-217-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SAPPINGTON | MO |
| 2024-11-07 | 557-221-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MEHLVILLE | MO |
| 2024-11-07 | 557-567-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KIRKWOOD | MO |
| 2024-11-07 | 557-567-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KIRKWOOD | MO |
| 2024-11-07 | 557-567-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KIRKWOOD | 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.