Production domain intermittently unreachable from multiple Ukrainian ISPs — possible routing blackhole to 69.46.46.96
slvn1shh
HOBBYOP

6 days ago

Hello Railway team,

Our production storefront is intermittently unreachable or extremely slow from multiple independent Ukrainian networks.

Project details:

Project: hopeful-radiance

Environment: production

Service: web

Service ID: fd0a55cc-f3ef-40b5-bab2-150d90fb8fd5

Custom domain:

https://anixmimix.com.ua

Railway service domain:

https://web-production-0a2a3.up.railway.app

Current Railway inbound edge IP:

69.46.46.96

Current web deployment:

fa876517-09c0-468c-9de8-3c0150e134fd

Deployment status:

SUCCESS / RUNNING

Symptoms:

  1. From Triolan in Ukraine (AS13188), TCP connections to

    anixmimix.com.ua on ports 80 and 443 consistently time out.

  2. From Vodafone Ukraine mobile internet (AS21497), the website sometimes

    loads, but only after a very long delay. Other attempts time out.

  3. The website loads normally and quickly when the same users connect

    through a VPN with an exit node outside the affected Ukrainian routes.

  4. The issue happens before the TLS handshake. Example:

    curl: (28) Failed to connect to anixmimix.com.ua port 443:

    Timeout was reached

  5. DNS resolution is consistent across the authoritative nameservers,

    Cloudflare DNS 1.1.1.1, and Google DNS 8.8.8.8:

    anixmimix.com.ua -> 69.46.46.96

  6. The Railway-provided service domain is also unreachable through the

    affected route, while Railway reports the deployment as RUNNING.

  7. The independent redirect server at www.anixmimix.com.ua is reachable

    and responds quickly, but it redirects users to the affected apex

    domain.

Traceroute from the affected Ukrainian route:

1 110.111.4.18

2 110.111.4.17

3 143.244.45.125

4 79.127.194.209

5 62.115.9.65 Twelve99 Kyiv

6 62.115.138.86 Twelve99 Kyiv

7 62.115.123.128 Twelve99 Warsaw

8 195.12.255.122 Twelve99 / DataCamp

9+ timeouts

The application itself appears healthy: the deployment is running, and the

website works through a VPN. This strongly suggests packet loss, a BGP

routing issue, or an inbound edge IP blackhole affecting Ukrainian ISPs.

We found reports of similar reachability problems affecting individual IPs

within Railway's 69.46.46.0/24 inbound edge range.

Could you please:

  1. Investigate inbound reachability to 69.46.46.96 from AS13188 and AS21497.

  2. Check whether the route is being blackholed or experiencing packet loss.

  3. Rotate or reassign the inbound edge IP for anixmimix.com.ua to another

    healthy Railway edge IP, if possible.

  4. Let us know whether placing Cloudflare Proxy in front of this Railway

    custom domain is the recommended fallback.

This is a production e-commerce website, and the issue prevents or severely

delays access for customers in Ukraine.

Additional evidence:

The Railway dashboard itself is also unreachable from the affected

Ukrainian networks:

railway.com -> 69.46.46.46 -> TCP connection timeout

Our production domain resolves to:

anixmimix.com.ua -> 69.46.46.96 -> timeout or extremely slow connection

Both addresses belong to Railway's 69.46.46.0/24 range. At the same time,

backboard.railway.com responds normally through Cloudflare, and both the

dashboard and our storefront work normally through a VPN.

This suggests that the reachability problem affects Railway's inbound

69.46.46.0/24 edge range from Ukrainian networks, not only our deployment.

Thank you.

$10 Bounty

1 Replies

Railway
BOT

6 days ago

This thread has been opened as a bounty so the community can help solve it.

Status changed to Open Railway 6 days ago


I’m able to access your domain just fine.

Users from/around Russia have reported issues reaching Railway’s servers.

Unfortunately, Railway isn’t able to do anything about regional/ISP blocks. Your only option would be to use a VPN.


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