BT blocking access to IP address

I work for a small web hosting company and have come across a funky issue that only impacts BT broadband customers.

For some unknown reason the following IP address is unroutable from the BT end:

185.17.24.90

All other IPs in the /29 work fine with BT (185.17.24.91 for example)..

I have seen this issue with 3 different BT internet customers but it would be helpful if any other BT users could just to a quick ping or MTR in that problem IP for me just to confirm it is widespread within the BT network.

Second question is does anyone know of anyway to contact the BT NOC team? I've been on the phone to various departments all morning but am unable to get past the first line of defence!

I'm on BT and I can't ping or traceroute to that address. 89 and 91 work fine.

In a reply to a similar (but not identical query) BT say

If you think a site shouldn’t be categorised as potentially harmful, you can contact us at [email protected] providing the details of the site you believe is being incorrectly categorised and we'll send this to our third-party supplier for further investigation. If it is verified as potentially harmful, you will need to contact your site administrator to resolve the issue on your website.

Edited by TinyMongomery (Fri 26-Apr-24 14:05:20)

I feel quite strongly about this. It is not for ISPs to classify sites as harmful or not. ISP's should be providing connectivity to all IP addresses without fear or favour. Classifying sites as good or bad should be done by other means at the customer's option.

I'm on BT..

Same here.

Same for PlusNet - yes BT owned but still have their own network management.

No Ping or Tracert

Just for completeness, 185.17.24.90 is definitely pingable from a Zen connection.
John

You can ping that IP from the BTnet Looking Glass so it seems like only broadband customers are affected

http://lg.bt.net/cgi-bin/welcome

In reply to a post by TinyMongomery:

I'm on BT and I can't ping or traceroute to that address. 89 and 91 work fine.

In a reply to a similar (but not identical query) BT say

If you think a site shouldn’t be categorised as potentially harmful, you can contact us at [email protected] providing the details of the site you believe is being incorrectly categorised and we'll send this to our third-party supplier for further investigation. If it is verified as potentially harmful, you will need to contact your site administrator to resolve the issue on your website.

Thanks for the suggestion. I've sent them an email so will see if I get a response. Although there aren't actually any websites on that IP, its main use was as a DNS server although not beyond the realms of possibility that a previous user of that IP hosted something dodgy in there as we only started using the IP this past Tuesday.

Also not accessable from EE (again no surprise as linked with BT)

OK from an A&A connection

Edited by nrb501 (Fri 26-Apr-24 21:00:28)

In reply to a post by nrb501:

Also not accessable from EE (again no surprise as linked with BT)

OK from an A&A connection

Same here on EE.

PING 185.17.24.90 (185.17.24.90): 64 data bytes

Request timed out!

Request timed out!

Request timed out!

Request timed out!

--- Ping Statistic "185.17.24.90" ---

Packets: Sent=4, Received=0, Lost=4 (100.00% loss)

ping is stopped.