Maybe try contacting the RIR?

On Wed, Jun 12, 2019, 12:23 PM Philip Lavine via NANOG <nanog@nanog.org> wrote:
yeah I did they are some MSP in India. No help.

On Wednesday, June 12, 2019, 9:15:51 AM PDT, Filip Hruska <fhr@fhrnet.eu> wrote:


Contact the offending upstreams.

Filip

On 12 June 2019 6:05:58 pm GMT+02:00, Philip Lavine via NANOG <nanog@nanog.org> wrote:
What is the procedure to have another party to cease and desist in using my AS number?

Thx

--
Sent from my Android device with K-9 Mail. Please excuse my brevity.