NumberResearchRecent thousands-block assignments
15 blocks assigned in April 2026 · 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, April 2026 — NPA 605
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2026-04-29 | 605-888-1XXX | 1000–1999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | CHAMBERLAN | SD |
| 2026-04-23 | 605-790-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SIOUX FLS | SD |
| 2026-04-06 | 605-200-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | DUPREE | SD |
| 2026-04-06 | 605-233-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLARK | SD |
| 2026-04-06 | 605-268-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SISSETON | SD |
| 2026-04-06 | 605-281-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BOWDLE | SD |
| 2026-04-06 | 605-440-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CUSTER | SD |
| 2026-04-06 | 605-476-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2026-04-06 | 605-551-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BRITTON | SD |
| 2026-04-06 | 605-680-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD | 6569 | KIMBALL | SD |
| 2026-04-06 | 605-686-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ESTELLINE | SD |
| 2026-04-06 | 605-769-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GETTYSBURG | SD |
| 2026-04-06 | 605-848-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GLENHAM | SD |
| 2026-04-06 | 605-906-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - SD | 106F | SIOUX FLS | SD |
| 2026-04-06 | 605-922-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ELKTON | SD |
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.