[Starlink] Re: Interesting speed test user IP address

[J Pan <Pan@uvic.ca>]

currently starlink backbone uses 149.19.108/23 and 206.224.64/19. for
backbone destinations, no mpls is used, nor rtt inflation, so per hop
rtt meaningful http://arxiv.org/pdf/2307.06863

traceroute to 206.224.76.0 (206.224.76.0), 18 hops max, 60 byte packets
 1  192.168.1.1  0.550 ms  0.599 ms  0.653 ms
 2  100.64.0.1  54.722 ms  54.717 ms  54.709 ms
 3  172.16.253.150  49.677 ms  49.663 ms  49.651 ms
 4  * * *
 5  206.224.64.17  49.497 ms  49.490 ms  49.484 ms
 6  149.19.109.82  140.069 ms  139.640 ms  139.563 ms
 7  206.224.77.173  186.855 ms  180.086 ms  180.049 ms
 8  206.224.65.60  179.960 ms  179.957 ms  179.933 ms
 9  206.224.68.184  206.652 ms  201.505 ms  206.654 ms
10  206.224.76.0  286.243 ms  265.551 ms  265.514 ms
--
J Pan, UVic CSc, ECS566, 250-472-5796 (NO VM), Pan@UVic.CA, Web.UVic.CA/~pan

On Sun, Oct 26, 2025 at 12:03 AM Inemesit Affia <inemesitaffia@gmail.com> wrote:
>
> That /24 is part of the backbone itself
>
> On Sun, Oct 26, 2025, 5:39 AM J Pan <Pan@uvic.ca> wrote:
>>
>> Thanks. "143.105.219.0/25,QA,QA-DA,Doha," and
>> "customer.isp.starlink.com." and traceroute confirms it exits at the
>> doha pop, e.g., from seattle (rtt is inflated due to mpls tunneling)
>>
>> traceroute to 143.105.219.47 (143.105.219.47), 18 hops max, 60 byte packets
>>  1  192.168.1.1  0.545 ms  0.640 ms  0.687 ms
>>  2  100.64.0.1  50.491 ms  50.487 ms  50.484 ms
>>  3  172.16.253.66  50.475 ms  50.466 ms  50.459 ms
>>  4  206.224.69.164 <MPLS:L=900725,E=3,S=1,T=1>  294.139 ms  294.131 ms
>>  294.228 ms
>>  5  206.224.64.43 <MPLS:L=900725,E=3,S=1,T=1>  294.084 ms  294.079 ms
>> 294.032 ms in seattle
>>  6  149.19.109.82 <MPLS:L=900725,E=3,S=1,T=1>  294.004 ms  293.557 ms
>> 293.508 ms to tokyo
>>  7  206.224.77.173 <MPLS:L=900725,E=3,S=1,T=1>  293.451 ms  267.667 ms
>>  279.595 ms to manila
>>  8  206.224.65.60 <MPLS:L=900725,E=3,S=1,T=1>  279.489 ms  283.491 ms
>> 283.485 ms in manila
>>  9  206.224.68.184 <MPLS:L=900725,E=3,S=1,T=1>  283.549 ms  267.722 ms
>>  267.677 ms to singapore
>> 10  206.224.76.0  271.252 ms  271.245 ms  291.663 ms to doha
>> 11  172.16.249.13  291.650 ms  291.641 ms  291.634 ms
>> 12  * * *
>> 13  * * *
>> 14  * * *
>>
>> https://www.flightaware.com/live/flight/QTR713/history/20251020/0505Z/OTHH/KIAH
>> a long flight, so depending on when and where the speedtest was done,
>> it might be far from doha
>> --
>> J Pan, UVic CSc, ECS566, 250-472-5796 (NO VM), Pan@UVic.CA, Web.UVic.CA/~pan
>>
>> On Sat, Oct 25, 2025 at 9:04 PM Inemesit Affia via Starlink
>> <starlink@lists.bufferbloat.net> wrote:
>> >
>> > https://old.reddit.com/r/qatarairways/comments/1oftwys/starlink_on_qr_713_oct_20/
>> >
>> > 143.105.219.47
>> >
>> > I think Pan at UVic will be especially interested.
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