Is there a way to tell which region my email Worker is running in?

$ curl https://1.1.1.1/cdn-cgi/trace
fl=4f603
h=1.1.1.1
ip=111.111.111.111
ts=1746577084.432
visit_scheme=https
uag=curl/8.7.1
colo=SJC
sliver=001-tier4
http=http/2
loc=US
tls=TLSv1.3
sni=off
warp=on
gateway=on
rbi=off
kex=XREALKEY

$ curl https://1.1.1.1/cdn-cgi/trace
fl=4f603
h=1.1.1.1
ip=111.111.111.111
ts=1746577084.432
visit_scheme=https
uag=curl/8.7.1
colo=SJC
sliver=001-tier4
http=http/2
loc=US
tls=TLSv1.3
sni=off
warp=on
gateway=on
rbi=off
kex=XREALKEY

export default {
    async fetch() {
        return new Response(`You are hitting ${(
            await (await fetch("https://1.1.1.1/cdn-cgi/trace")).text()
        ).match(/^colo=(.+)/m)[1]} via Quad1.`)
    }
}

export default {
    async fetch() {
        return new Response(`You are hitting ${(
            await (await fetch("https://1.1.1.1/cdn-cgi/trace")).text()
        ).match(/^colo=(.+)/m)[1]} via Quad1.`)
    }
}

  async fetch(request, env, ctx) {
    await this.scheduled(request, env, ctx);
    return new Response("don");
  },

...

  async scheduled(event, env, ctx) {
    const data = await this.getAllDataInD1(env);
    const description = data.map(rank => `${rank.tierName} (${rank.rankScore})`).join('\n');
    await editWebhook(description);
  },

  async fetch(request, env, ctx) {
    await this.scheduled(request, env, ctx);
    return new Response("don");
  },

...

  async scheduled(event, env, ctx) {
    const data = await this.getAllDataInD1(env);
    const description = data.map(rank => `${rank.tierName} (${rank.rankScore})`).join('\n');
    await editWebhook(description);
  },

case '/message':
                        let res2 = {
                            headers: new Headers({ "Content-Type": "text/html" }),
                            body: ('../public/subscribe.html')
                        };
                        return new Response(res2);

case '/message':
                        let res2 = {
                            headers: new Headers({ "Content-Type": "text/html" }),
                            body: ('../public/subscribe.html')
                        };
                        return new Response(res2);

import html from '../public/subscribe.html'

return new Response(html);

import html from '../public/subscribe.html'

return new Response(html);

case '/message':
                        let mesRes = {
                            headers:new Headers({ "Content-Type": "text/html" }),
                            body: subHTML
                        }
                        return new Response(mesRes);

case '/message':
                        let mesRes = {
                            headers:new Headers({ "Content-Type": "text/html" }),
                            body: subHTML
                        }
                        return new Response(mesRes);

return new Response(html, { headers: { 'Content-Type': 'text/html' } });

return new Response(html, { headers: { 'Content-Type': 'text/html' } });