From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: mail.toke.dk; dkim=pass header.d=uvic.ca header.i=@uvic.ca header.a=rsa-sha256 header.s=selector2 header.b=lt+vgQrA; arc=pass; dmarc=pass (Used From Domain Record) header.from=uvic.ca policy.dmarc=reject Received: from YQZPR01CU011.outbound.protection.outlook.com (mail-canadaeastazlp170100001.outbound.protection.outlook.com [IPv6:2a01:111:f403:c104::1]) by mail.toke.dk (Postfix) with ESMTPS id CB3BD18FC349 for ; Fri, 23 Oct 2026 19:12:38 +0200 (CEST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=bV2eWi+BBb8VxRzZrdE0//z0OGLOvx4Ooeov/5Trd5t9/y2qVIu548a14RcBqC28p0VQiQgy+77Q83Hmd3brYVcufdF8cMbo/YlKNR/YlJ63MsuxuyOxPHKFR2+DaCmUkV3Q9YSE4eV5YHxEWuxXm91fvfvF/uIReIMhG6tPC9tZ0HScwbILX1zsXECSl9Xvmr03noNPHJTzT6n0IPnHwVKZpbPXN3IFeBolAPtgaronSGQNkTvktpQq6wtUSxsRxqP+1R2IlusdgAsh3E7fpdQw6BkfguQp+kk/AXD8YEaO3F9mc6bHIuCSrHaRCqz7SCGoHLjqRdwhj5vts7xyew== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=o9x8xLaTxP7Vvk7tkam5Gcp8oHV8ToOyLsRpKSl0B9s=; b=RgHUSoBe0bdku2nQJ+jVA5tmObnnDOT55Dt/fwUTj5fZ8rN8eHVPM2GRKuiazhNPdmy9298fqcrYa7icywDxelyeBkv7dSgzQqTPnW6McyaNrqBg9BopHyPATvU1XhCKLULtuye2jrWZibmXbggXr/gTH0RqVxf5peTRcizyw2pFrWSnOOW5CfqoGiO4DLkLDsLaW2ah9NLQDcZBtwvOggEQB0QPoc8bb++lt6rw6l27BS4qUHuuPO2ee34psKxqE5zjuPkb1kvdI/6xYOUKS33c1plcAZjdNfIoKZV5/8OFcG5dxV6Pe7c7tQVHFfATv6gWkDAPS59jsGU9ii6fjA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=uvic.ca; dmarc=pass action=none header.from=uvic.ca; dkim=pass header.d=uvic.ca; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=uvic.ca; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=o9x8xLaTxP7Vvk7tkam5Gcp8oHV8ToOyLsRpKSl0B9s=; b=lt+vgQrA94wYCSnF2pIOS8bijnBTGTTeTrIoeihnobqcveMLuQCj1VjUh1ZHVdn0bOcYyCnCzXgDSJrFlw91VVN6/F6GSKr68ZhuhnrCSy0AEsIvndWeXmnI1bAf61SmjdeMrCcb/a9ZUr9dia2poDlLp3PIzMYmDsj5J+QJoHzynvL8qwjcg+x86wtwe+Q1qhlZIT306S/XaHFGRZ/ag8hK91f6YCKm7hAJneddimLO1IEzflHfnhHt77D4lOqO7CEUj1XGw9ZIG8T2E3htYXUwtJ9J0U4+oHvlJfsETGJMy1ZHgsS0EB8/zIge1gQmpi8p8OSgqgqEZwbZips/3A== Received: from YT4P288MB1242.CANP288.PROD.OUTLOOK.COM (2603:10b6:b01:164::20) by YT5P288MB0723.CANP288.PROD.OUTLOOK.COM (2603:10b6:b01:131::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.546.19; Fri, 23 Oct 2026 17:12:23 +0000 Received: from YT4P288MB1242.CANP288.PROD.OUTLOOK.COM ([fe80::9df7:b071:ed0d:4a09]) by YT4P288MB1242.CANP288.PROD.OUTLOOK.COM ([fe80::9df7:b071:ed0d:4a09%2]) with mapi id 15.21.0546.017; Fri, 23 Oct 2026 17:12:23 +0000 From: Jianping Pan To: Dave Taht via Starlink , Frantisek Borsik Thread-Topic: [Starlink] Ookla's Speedtest results now map the city & PoP where your traffic joins the IXPs as the aircraft moves Thread-Index: AQHdYsZi8QcJOxqRTUaSi1te3nP1zbcLWV6z Date: Fri, 23 Oct 2026 17:12:23 +0000 Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: x-ms-publictraffictype: Email x-ms-traffictypediagnostic: YT4P288MB1242:EE_|YT5P288MB0723:EE_ x-ms-office365-filtering-correlation-id: 1794f0ae-a580-45e1-c1a3-08df3128cdce x-ms-exchange-senderadcheck: 1 x-ms-exchange-antispam-relay: 0 x-microsoft-antispam: BCL:0;ARA:13230040|376014|786006|1800799024|366016|23010399003|4022899009|260925022911599003|260925021311599003|260925021911599003|11063799006|56012099006|261021133027099003|261021130227099003|261021123027099003|261021121427099003|38070700021|261022113327099003|261022115727099003|261021135927099003|261022105027099003|261022075727099003|261009223027099003|10067099003|18002099003|22082099003|4133799003; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:YT4P288MB1242.CANP288.PROD.OUTLOOK.COM;PTR:;CAT:NONE;SFS:(13230040)(376014)(786006)(1800799024)(366016)(23010399003)(4022899009)(260925022911599003)(260925021311599003)(260925021911599003)(11063799006)(56012099006)(261021133027099003)(261021130227099003)(261021123027099003)(261021121427099003)(38070700021)(261022113327099003)(261022115727099003)(261021135927099003)(261022105027099003)(261022075727099003)(261009223027099003)(10067099003)(18002099003)(22082099003)(4133799003);DIR:OUT;SFP:1102; x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: =?Windows-1252?Q?GV/PyiqtixJa8JY5P7aiOGYoh6B+meBB3ANwo6BUEC8zKUDDXj8JfvgW?= =?Windows-1252?Q?RcJQDirOT2a0I+6LkO5vRWVATe1FP9xs4FDc+of3LGy72K6hEhkTYG2s?= =?Windows-1252?Q?GCsi2y/9VcOeJz9k9vNUTknJrvse5JUuWm/3ahCRlwtmAX2QF1oBMixu?= =?Windows-1252?Q?lixQxe4xMV2MyMYQ1+vsw7JvBot7qqJyj7nfhRI/BWpc7+Qc4u6LaugF?= =?Windows-1252?Q?oX9Vkei0wKtJd0lOYc+dL9c/UWorXrbjB3ExPaaFE/Ti4WXik2pMRqkC?= =?Windows-1252?Q?bPfFRcQgKnreLnz2DnGrfo2k1TQmQMLD9GD6oZuQ8xs3RzMsx6VKD5/v?= =?Windows-1252?Q?0xOZ/N4MCBRksALwmHO8kxczB6qThC8wyjfXtKhylXSK7LC9NXCmrIKw?= =?Windows-1252?Q?JcEKaFfHEnUSLd5k+a/roNGkU1kEh6QalPKyJNTJndrZcXl0RnkQ+Da8?= =?Windows-1252?Q?mJfgMkEMOWj9ZQArxW/7r6YZDZSMj7Djo2pZ6ZYmfYpmL2uPvMznyFAO?= =?Windows-1252?Q?ZwnEJ3W7WN8dxW09JksmpNIfw3sTOwKba9WPlDg5tnG0j1ZyPuJfN7gm?= =?Windows-1252?Q?pxo1AU+owxxnTCGMcaS4TyfNJVp4rtUZwEV5hKMZRJBJGs2cSpFRNEfM?= =?Windows-1252?Q?AUlK9cClLLQtA9fOvsVNEMjrNsB05+pVZUouAbUmat8HhzLefii4oC3N?= =?Windows-1252?Q?E5f0hleykj3vGMIoSSCC90iGBHGV1AKkNFfjC8/lHzCPt9gBrBsYgWiF?= =?Windows-1252?Q?iuqojfyZ3uH64feu/npB2Dv5wne3ahARR+Vp1ELbZ3HvjKehYOonQMCY?= =?Windows-1252?Q?yPkjggbolGvqwMFIOg43zkLG3DyBEAg0eQTs6sdo129vL8LoOumSGstN?= =?Windows-1252?Q?YpeUXSc9AqoP2/aFTaST3XO/2KyiP0BF98GLrfusSDS7h2DcbMf0H4MQ?= =?Windows-1252?Q?SW0lN+dsjrdGihO2u9htj1DwnpKIYs0641ZUy04JcDzpfoD2EwcxjJNV?= =?Windows-1252?Q?YGDBRQrpGVDt1vm/TogIc8jQ5T9MvlxVUuiERnqydKpgJ8F+5b6kKCzl?= =?Windows-1252?Q?LmL8xTp51feAXo7CuhZbLqnZNgEXRl75jAuZgvDOmWNpwuu+hBKLr+3j?= =?Windows-1252?Q?4TGMQMLM6BfpfR2ApDUaqNJ8jCMrGO+mujE2f+R8SNtMbdO4DMZ55Aqb?= =?Windows-1252?Q?xU6KkaCKGleSD3zOvtVFTlKmvWL6I3bXYRNNaANAw9RlvDSLEtMMVZQL?= =?Windows-1252?Q?+Kv0kzFppKqTAW470uvY30fRWQGjHBYIw/4H5uZnwIJD0ZJmI9obhOOl?= =?Windows-1252?Q?TMBIjMZry0LC9AjWZ+oqBEH9+XF31sy1cvMajJVz3W8RBoxjxH1EVW4m?= =?Windows-1252?Q?FTht2Mca+N18LqCCET8HKv1SQ929ZDp9zLzHiGyBkiPXSX5hnGo5hqXX?= =?Windows-1252?Q?bh3mpHLXO9DC7YT1cgv/2J0tnUq/Ax8pSyr7vRSQ0uMZAPZxqpbByl/b?= =?Windows-1252?Q?E9jU2SQEQyXQfmwymPYMpfNYvtmiPvOSYJM9CtArc4nIoH6QsomGwd6T?= =?Windows-1252?Q?nKAeImB6VjvCBYVV+S5ATO+R1kuJmUrs4RX3bHD0EkleQPbgi4bAPjH9?= =?Windows-1252?Q?YPjLaif5vKOLRh0DwQ1kkA2sg78Vzs065rI7+RobQQEN6p3J/J6dPnBq?= =?Windows-1252?Q?JF/UiKWf3tsubJ4I7BGmrSLLFMqx+euOX57Cbg1fr5EwdDHZVdI6bFit?= =?Windows-1252?Q?DWwpb5ZJnyxI8qM5tNUiWzT95B/YD4TGTi9MkglPOpbAkOwVjBD1s0Dk?= =?Windows-1252?Q?KPx3zU3uytrMyaUagzG27Eli34rgv/I+bhKZKWzVNZx/1dlb?= Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: uvic.ca X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: YT4P288MB1242.CANP288.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-Network-Message-Id: 1794f0ae-a580-45e1-c1a3-08df3128cdce X-MS-Exchange-CrossTenant-originalarrivaltime: 23 Oct 2026 17:12:23.0925 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 9c61d377-9894-427c-b13b-1d6a51662b4e X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: b7K4Q0zkJJ6oCuASwZdbjnq35kJbmO8qRIFU8buTqYC+wSshNwgEv8HohyZwK79S X-MS-Exchange-Transport-CrossTenantHeadersStamped: YT5P288MB0723 Message-ID-Hash: 4NC5SMEYEPGVN4KQ2WVQNUXEF6CIRSB7 X-Message-ID-Hash: 4NC5SMEYEPGVN4KQ2WVQNUXEF6CIRSB7 X-MailFrom: pan@uvic.ca X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.10 Precedence: list Subject: [Starlink] Re: Ookla's Speedtest results now map the city & PoP where your traffic joins the IXPs as the aircraft moves List-Id: "Starlink has bufferbloat. Bad." Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Thanks Frank: this is a(nother) example of network users, engineers and res= earchers interaction and collaboration to make the internet a better place = for everyone. it started as user complaints on starlink geoip/content misma= tch, our initial investigation, ietf ipgeo workshop, starlink response, our= follow-up work, inside-out measurement, wars in middle east, outside-in me= asurement, and an imc paper award ;-) a lot of people on the mailing list helped along the way. yes, those 900+ a= ircraft are part of the dave daht memorial testbed too. thanks! is https://www.reddit.com/r/StarlinkEngineering/comments/1wtu2d0/ookla_vs_c= loudflare_speedtest_on_starlinkequipped/ fixed now? -- J Pan, UVic CSc, ECS566, 250-472-5796 (NO VM), Pan@UVic.CA, Web.UVic.CA/~pa= n ________________________________________ From: Frantisek Borsik via Starlink Sent: Friday, October 23, 2026 1:23 AM To: Dave Taht via Starlink Subject: [Starlink] Ookla's Speedtest results now map the city & PoP where = your traffic joins the IXPs as the aircraft moves Nice job, Ookla (or rather, Accenture now, lol) Kudos to Jianping Pan and Jinwei Zhao (University of Victoria). Original post shared by Luke Kehoe annoucing it on LinkedIn: https://www.linkedin.com/feed/update/urn:li:activity:7519293982208761856/ *TL; DR;* Now we can trace Starlink packets from the ground (thanks to work done by Jianping Pan and Jinwei Zhao at University of Victoria - see their research paper below) AND also from inside the cabin, using passengers=92 o= wn Speedtest results, thanks to Ookla. If you don't want to go there, here is a copy+paste: On a Starlink-connected flight, the city and PoP where your traffic joins the internet changes as the aircraft moves, and passengers=92 own Speedtest results now let us map that from inside the cabin across more than 20 airlines around the world, building on research by Jinwei Zhao and Jianping Pan at the University of Victoria (who identified more than 900 Starlink aircraft from the ground). *Speedtest app results carry a traceroute, and on Starlink those that get a reply cross Starlink=92s routers at the point of presence (PoP) where traff= ic meets the internet. We matched those routers to PoPs using Starlink=92s own address records (archived by the UVic team), keeping only passengers with a fresh GPS fix at airliner speed (April to September 2026).* Over the North Atlantic, passengers connected through Montreal or New York until roughly halfway across, then London or Madrid (i.e., directionally consistent with the mid-ocean handovers UVic observed). Hawaii has Starlink ground stations but no PoP, so passengers within 1,500 km of Honolulu reached the internet in Los Angeles, nearly 4,000 km away, at a median multi-server latency of 95 ms (against 43 ms within 750 km of their PoP). The most policy-relevant (and interesting) observation here concerns in-country egress. Starlink places home users in Oman on its Muscat PoP and in Indonesia on Jakarta, Surabaya or Batam, yet passengers over Oman and Indonesia connected through Doha and Singapore respectively in our data (small numbers, but UVic saw the same and hypothesise these PoPs exist for local egress rules). As more governments mandate in-country egress, how overflying aircraft are treated is an open question. Separately, but relevant, passengers measured about twice the median download speed of Starlink homes in the same areas and months in our data. The University of Victoria research was able to follow one aircraft for a whole flight by combining publicly reachable IPv6 addresses, MPLS routing labels and flight tracking data (e.g., one Qatar Airways flight from Doha to New York connected through seven cities in turn, at times over 2,000 km away, as visualised in the film), and the team found aircraft unreachable over India and Pakistan. *The research also showed how Starlink's new "anycast users" feature allows aircraft to retain the same public IP address as traffic moves between geographically distant PoPs, avoiding the TCP connection disruptions associated with previous handovers.* Research paper linked in the comments. The research by Jinwei Zhao and Jianping Pan (University of Victoria), *=93Measuring Starlink Aviation Around the World=94*, ACM IMC 2026, open access: doi.org/10.1145/3777912.3839781 *Their method works from the ground.* They identified more than 900 Starlink aircraft by their router addresses, read Starlink=92s own routing labels from a Starlink terminal in Canada, and measured latency from 27 cloud servers over five months. *Our view complements theirs from inside the cabin, using passengers=92 own Speedtest results.* All the best, Frank Frantisek (Frank) Borsik *In loving memory of Dave T=E4ht: *1965-2025 https://libreqos.io/2025/04/01/in-loving-memory-of-dave/ https://www.linkedin.com/in/frantisekborsik Signal, Telegram, WhatsApp: +421919416714 iMessage, mobile: +420775230885 Skype: casioa5302ca frantisek.borsik@gmail.com _______________________________________________ Starlink mailing list -- starlink@lists.bufferbloat.net To unsubscribe send an email to starlink-leave@lists.bufferbloat.net