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 641
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-05-12 | 641-516-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MARSHALLTN | IA |
| 2018-11-26 | 641-609-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ALEXANDER | IA |
| 2018-11-14 | 641-401-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SWALEDALE | IA |
| 2018-11-14 | 641-406-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MESERVEY | IA |
| 2018-11-14 | 641-614-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SHARPSBURG | IA |
| 2018-11-14 | 641-646-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ROWAN | IA |
| 2018-11-14 | 641-671-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | LENOX | IA |
| 2018-11-14 | 641-681-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GOODELL | IA |
| 2018-03-01 | 641-800-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ACKLEY | IA |
| 2017-12-14 | 641-666-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OSAGE | IA |
| 2017-12-12 | 641-321-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | MOUNT AYR | IA |
| 2017-06-07 | 641-346-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ARISPE | IA |
| 2017-06-07 | 641-364-3XXX | 3000–3999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ALTA VISTA | IA |
| 2017-06-07 | 641-427-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BAGLEY | IA |
| 2017-06-07 | 641-444-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BELMOND | IA |
| 2017-06-07 | 641-785-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BENTON | IA |
| 2017-06-07 | 641-931-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ALBIA | IA |
| 2017-06-07 | 641-934-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BLADENSBG | IA |
| 2017-06-07 | 641-937-9XXX | 9000–9999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AGENCY | IA |
| 2017-06-07 | 641-938-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BLAKESBURG | IA |
| 2017-06-07 | 641-943-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ATTICA | IA |
| 2017-04-19 | 641-298-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AMUND | IA |
| 2017-03-02 | 641-347-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | AFTON | IA |
| 2017-03-02 | 641-742-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ADAIR | IA |
| 2017-03-02 | 641-877-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HUMESTON | IA |
| 2017-02-28 | 641-456-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HAMPTON | IA |
| 2017-02-28 | 641-473-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GLADBROOK | IA |
| 2017-02-28 | 641-499-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GARWIN | IA |
| 2017-02-28 | 641-635-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HARPER | IA |
| 2017-02-28 | 641-653-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | HEDRICK | IA |
| 2017-02-28 | 641-823-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GREENE | IA |
| 2017-02-28 | 641-924-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GARNER | IA |
| 2017-02-27 | 641-247-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FONTANELLE | IA |
| 2017-02-27 | 641-433-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WHAT CHEER | IA |
| 2017-02-27 | 641-452-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | UNIONVILLE | IA |
| 2017-02-27 | 641-655-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FARSON | IA |
| 2017-02-27 | 641-862-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WILLIAMSON | IA |
| 2017-02-27 | 641-869-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | WELLSBURG | IA |
| 2017-02-27 | 641-933-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | FREMONT | IA |
| 2017-02-27 | 641-949-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | TRACY | IA |
| 2017-02-24 | 641-737-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | STACYVILLE | IA |
| 2017-02-24 | 641-772-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | TINGLEY | IA |
| 2017-02-23 | 641-244-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OTTUMWA | IA |
| 2017-02-23 | 641-339-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SHANNON CY | IA |
| 2017-02-23 | 641-535-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | RUSSELL | IA |
| 2017-02-23 | 641-599-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ST ANSGAR | IA |
| 2017-02-23 | 641-627-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | OTLEY | IA |
| 2017-02-23 | 641-632-1XXX | 1000–1999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ROSE HILL | IA |
| 2017-02-23 | 641-651-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | PELLA | IA |
| 2017-02-23 | 641-898-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | SEYMOUR | IA |
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.