nanog mailing list archives

pingability of 2600::


From: Marco Moock via NANOG <nanog () lists nanog org>
Date: Thu, 15 Jan 2026 20:30:44 +0100

Hello!

Cogent operates a machine on 2600::. IIRC there was also a route to
sprint for that net, but that seems to be gone.

I can ping that via my ISP (AS8820) that uses Cogent as its current
default uplink.

Although, I cannot ping that from various other ISPs, e.g. HE AS6939 or
DTAG 3320 (no route).

Some other people reported issues years ago:
https://www.reddit.com/r/ipv6/comments/1bzfqzn/2600_is_no_longer_pingable/

Do some people know more about that case?

-- 
kind regards
Marco

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