155.136.0.0/17
Origin history for this exact network block.
| From | Until | Origin ASN | Name at start |
|---|---|---|---|
| 2026-10-29 | 2026-10-30 | AS21301 | Natwest Markets PLC |
| 2026-10-26 | Current | AS21054 | Natwest Markets PLC |
| 2026-10-24 | 2026-10-25 | AS21054 | Natwest Markets PLC |
| 2026-10-08 | 2026-10-20 | AS21054 | Natwest Markets PLC |
| 2026-10-04 | 2026-10-26 | AS21301 | Natwest Markets PLC |
| 2026-06-13 | 2026-10-04 | AS21054 | Natwest Markets PLC |