NumberResearchRecent thousands-block assignments
4 blocks assigned in the last 30 days · 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, last 30 days — NPA 641
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 |
|---|---|---|---|---|---|---|---|
| 2010-03-09 | 641-715-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | CHARLES CY | IA |
| 2010-03-09 | 641-921-1XXX | 1000–1999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | GREEN MT | IA |
| 2010-03-08 | 641-201-1XXX | 1000–1999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | MASON CITY | IA |
| 2010-03-08 | 641-251-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | FORESTCITY | IA |
| 2010-03-08 | 641-260-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | GRINNELL | IA |
| 2010-03-08 | 641-316-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | IOWA FALLS | IA |
| 2010-03-08 | 641-323-0XXX | 0000–0999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | NORTHWOOD | IA |
| 2010-03-08 | 641-323-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | NORTHWOOD | IA |
| 2010-03-08 | 641-372-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | ROCKWELL | IA |
| 2010-03-08 | 641-393-0XXX | 0000–0999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | ELMA | IA |
| 2010-03-08 | 641-394-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | NEWHAMPTON | IA |
| 2010-03-08 | 641-454-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | MANLY | IA |
| 2010-03-08 | 641-473-0XXX | 0000–0999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | GLADBROOK | IA |
| 2010-03-08 | 641-479-0XXX | 0000–0999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | LE GRAND | IA |
| 2010-03-08 | 641-481-7XXX | 7000–7999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | TOLEDO | IA |
| 2010-03-08 | 641-499-0XXX | 0000–0999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | GARWIN | IA |
| 2010-03-08 | 641-572-1XXX | 1000–1999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | LEON | IA |
| 2010-03-08 | 641-715-1XXX | 1000–1999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | CHARLES CY | IA |
| 2010-03-08 | 641-732-0XXX | 0000–0999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | OSAGE | IA |
| 2010-03-08 | 641-732-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IA | 9877 | OSAGE | IA |
| 2010-03-08 | 641-847-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | ACKLEY | IA |
| 2010-03-08 | 641-863-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | BRITT | IA |
| 2010-03-08 | 641-892-1XXX | 1000–1999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | SHEFFIELD | IA |
| 2010-03-04 | 641-231-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | CLEAR LAKE | IA |
| 2010-03-04 | 641-289-1XXX | 1000–1999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | LAMONI | IA |
| 2010-03-04 | 641-353-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | KENSETT | IA |
| 2010-03-04 | 641-457-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | LELAND | IA |
| 2010-03-04 | 641-735-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | BUFFALOCTR | IA |
| 2010-03-04 | 641-834-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | LYNNVILLE | IA |
| 2010-03-04 | 641-846-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | VENTURA | IA |
| 2010-03-04 | 641-849-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | ELDORA | IA |
| 2010-03-04 | 641-887-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | SULLY | IA |
| 2010-03-03 | 641-316-1XXX | 1000–1999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | IOWA FALLS | IA |
| 2010-03-03 | 641-328-1XXX | 1000–1999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | MARSHALLTN | IA |
| 2010-03-03 | 641-418-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | CORNING | IA |
| 2010-03-03 | 641-444-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | BELMOND | IA |
| 2010-03-03 | 641-569-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | OSKALOOSA | IA |
| 2010-03-03 | 641-954-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | OTTUMWA | IA |
| 2010-03-02 | 641-204-0XXX | 0000–0999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | PELLA | IA |
| 2010-03-02 | 641-205-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | KNOXVILLE | IA |
| 2010-03-02 | 641-207-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | KEOTA | IA |
| 2010-03-02 | 641-216-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | CENTERVL | IA |
| 2010-03-02 | 641-217-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | CHARITON | IA |
| 2010-03-02 | 641-221-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | GREENFIELD | IA |
| 2010-03-02 | 641-223-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | OSCEOLA | IA |
| 2010-03-02 | 641-224-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | SIGOURNEY | IA |
| 2010-03-02 | 641-225-8XXX | 8000–8999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | EDDYVILLE | IA |
| 2010-03-02 | 641-259-4XXX | 4000–4999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | MONROE | IA |
| 2010-03-02 | 641-275-9XXX | 9000–9999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | NEWTON | IA |
| 2010-03-02 | 641-278-1XXX | 1000–1999 | Assigned | MCC TELEPHONY OF IOWA, LLC - IA | 751F | CRESTON | IA |
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.