NumberResearchRecent thousands-block assignments
66 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
New assignments by month
Sep 2026
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Apr 2026
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Dec 2025
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Oct 2025
| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2022-02-22 | 224-454-9XXX | T-MOBILE USA, INC. | 6529 | ELGIN | IL |
| 2022-02-22 | 405-564-1XXX | T-MOBILE USA, INC. | 6529 | STILLWATER | OK |
| 2022-02-22 | 480-875-0XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 480-875-1XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 480-875-2XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 480-875-3XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 480-875-4XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 480-875-5XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 480-875-6XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 480-875-7XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 480-875-8XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 480-875-9XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 539-260-0XXX | T-MOBILE USA, INC. | 6529 | BROKENARRW | OK |
| 2022-02-22 | 539-260-1XXX | T-MOBILE USA, INC. | 6529 | BROKENARRW | OK |
| 2022-02-22 | 539-260-2XXX | T-MOBILE USA, INC. | 6529 | BROKENARRW | OK |
| 2022-02-22 | 539-260-3XXX | T-MOBILE USA, INC. | 6529 | BROKENARRW | OK |
| 2022-02-22 | 539-260-4XXX | T-MOBILE USA, INC. | 6529 | BROKENARRW | OK |
| 2022-02-22 | 539-260-5XXX | T-MOBILE USA, INC. | 6529 | BROKENARRW | OK |
| 2022-02-22 | 539-260-6XXX | T-MOBILE USA, INC. | 6529 | BROKENARRW | OK |
| 2022-02-22 | 623-284-4XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 623-284-5XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 623-284-6XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 623-284-7XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 623-284-8XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 623-284-9XXX | T-MOBILE USA, INC. | 6529 | PHOENIX | AZ |
| 2022-02-22 | 681-424-4XXX | T-MOBILE USA, INC. | 6529 | CHRLSTNZN6 | WV |
| 2022-02-22 | 681-424-5XXX | T-MOBILE USA, INC. | 6529 | CHRLSTNZN6 | WV |
| 2022-02-22 | 681-424-6XXX | T-MOBILE USA, INC. | 6529 | CHRLSTNZN6 | WV |
| 2022-02-22 | 681-424-7XXX | T-MOBILE USA, INC. | 6529 | CHRLSTNZN6 | WV |
| 2022-02-22 | 681-424-8XXX | T-MOBILE USA, INC. | 6529 | CHRLSTNZN6 | WV |
| 2022-02-22 | 681-424-9XXX | T-MOBILE USA, INC. | 6529 | CHRLSTNZN6 | WV |
| 2022-02-18 | 224-453-0XXX | T-MOBILE USA, INC. | 6529 | DEERFIELD | IL |
| 2022-02-18 | 779-775-1XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-02-18 | 779-775-2XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-02-18 | 779-775-3XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-02-18 | 779-775-4XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-02-18 | 779-775-6XXX | T-MOBILE USA, INC. | 6529 | DE KALB | IL |
| 2022-02-17 | 430-258-8XXX | T-MOBILE USA, INC. | 6529 | MARSHALL | TX |
| 2022-02-17 | 430-588-0XXX | T-MOBILE USA, INC. | 6529 | MARSHALL | TX |
| 2022-02-17 | 430-588-4XXX | T-MOBILE USA, INC. | 6529 | MARSHALL | TX |
| 2022-02-17 | 430-588-9XXX | T-MOBILE USA, INC. | 6529 | MARSHALL | TX |
| 2022-02-16 | 712-952-9XXX | T-MOBILE USA, INC. | 6529 | OTO | IA |
| 2022-02-15 | 430-295-0XXX | T-MOBILE USA, INC. | 6529 | GREENVILLE | TX |
| 2022-02-15 | 430-295-1XXX | T-MOBILE USA, INC. | 6529 | GREENVILLE | TX |
| 2022-02-15 | 430-295-2XXX | T-MOBILE USA, INC. | 6529 | GREENVILLE | TX |
| 2022-02-15 | 430-295-3XXX | T-MOBILE USA, INC. | 6529 | GREENVILLE | TX |
| 2022-02-15 | 430-295-4XXX | T-MOBILE USA, INC. | 6529 | GREENVILLE | TX |
| 2022-02-15 | 430-295-5XXX | T-MOBILE USA, INC. | 6529 | GREENVILLE | TX |
| 2022-02-15 | 430-295-6XXX | T-MOBILE USA, INC. | 6529 | GREENVILLE | TX |
| 2022-02-15 | 430-295-7XXX | T-MOBILE USA, INC. | 6529 | GREENVILLE | TX |
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.