NumberResearchRecent prefix assignments
3 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/18/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
New assignments by month
Sep 2026
Aug 2026
Jul 2026
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May 2026
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Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-03-25 | 645-587 | OPENTACT INC. | 824J | MIAMI | FL |
| 2026-03-25 | 656-587 | OPENTACT INC. | 824J | TAMPACEN | FL |
| 2026-03-24 | 930-587 | OPENTACT INC. | 824J | EVANSVILLE | IN |
| 2026-03-19 | 478-587 | OPENTACT INC. | 824J | MACON | GA |
| 2026-03-19 | 728-587 | OPENTACT INC. | 824J | WPALMBEACH | FL |
| 2026-03-19 | 862-587 | OPENTACT INC. | 824J | NEWARK | NJ |
| 2026-03-19 | 863-587 | OPENTACT INC. | 824J | LAKELAND | FL |
| 2026-03-19 | 901-788 | OPENTACT INC. | 824J | MEMPHIS | TN |
| 2026-03-19 | 983-587 | OPENTACT INC. | 824J | DENVER | CO |
| 2026-03-18 | 227-500 | OPENTACT INC. | 824J | GAITHERSBG | MD |
| 2026-03-18 | 434-639 | OPENTACT INC. | 824J | LYNCHBURG | VA |
| 2026-03-18 | 948-639 | OPENTACT INC. | 824J | NRFOLKZON2 | VA |
| 2026-03-04 | 225-587 | OPENTACT INC. | 824J | BATONROUGE | LA |
| 2026-03-03 | 214-805 | OPENTACT INC. | 824J | DALLAS | TX |
| 2026-01-16 | 983-277 | OPENTACT INC. | 824J | DENVER | CO |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.