NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 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 |
|---|---|---|---|---|---|---|---|
| 2026-02-19 | 557-249-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-09-03 | 557-240-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-09-03 | 557-240-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-09-03 | 557-240-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-09-03 | 557-240-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-09-03 | 557-240-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-09-03 | 557-240-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-09-03 | 557-240-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-09-03 | 557-240-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-09-03 | 557-240-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-09-03 | 557-240-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2025-05-15 | 557-234-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2025-05-15 | 557-234-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2025-02-07 | 557-207-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | OAKVILLE | 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 |
| 2024-08-30 | 557-213-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2024-06-17 | 557-225-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | LADUE | MO |
| 2023-12-15 | 557-224-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO |
| 2023-12-15 | 557-224-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO |
| 2023-12-15 | 557-224-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO |
| 2023-12-15 | 557-224-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO |
| 2023-12-15 | 557-224-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO |
| 2023-12-15 | 557-224-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO |
| 2023-12-15 | 557-224-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO |
| 2023-12-15 | 557-224-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO |
| 2023-12-15 | 557-224-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO |
| 2023-12-15 | 557-224-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | CREVECOEUR | MO |
| 2023-08-31 | 557-999-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | SAPPINGTON | MO |
| 2023-06-06 | 557-202-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-205-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-205-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-205-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-205-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-205-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-205-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-205-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-205-7XXX | 7000–7999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-205-8XXX | 8000–8999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-205-9XXX | 9000–9999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-206-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-206-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-206-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
| 2023-06-01 | 557-206-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - MO | 7218 | ST LOUIS | MO |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.