AS701 anycasts any IP?

Christopher Morrow morrowc.lists at
Fri Aug 26 14:48:37 UTC 2022

On Fri, Aug 26, 2022 at 5:49 AM Bjoern Franke via NANOG <nanog at> wrote:
> Hi,
> while investigating an issue I was wondering a german IP was only 1-2
> hops away from some RIPE Atlas Probes connected via AS701.
> It seems at least probe #50235 and #54508 see any IP directly as next
> hop, as an example here with the IP of

the 2 probes are in boston, mass vs new york, new york.
The endpoint appears to be closer to the boston probe (54508).
>From virginia/wdc the endpoint is ~100ms away and in ~germany.
  (the last hop I see says anx84, which might be norway... 'not boston' though)

Is it possible that 701's seeing a local copy of the /24?

looking at their lookingglass for ping/bgp data from billerica, ma
(boston adjacent): (2 entries, 1 announced)
        *BGP    Preference: 170/-96
                Age: 2w2d 6:44:09 Metric: 10 Metric2: 500502
                Announcement bits (4): 0-KRT 3-RT 10-BGP_RT_Background
11-Resolve tree 5
                AS path: 1299 47147 197540 I  (Originator)

PING ( 56 data bytes
64 bytes from icmp_seq=0 ttl=55 time=102.899 ms

curious results though :)

> Regards
> Bjoern

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