29 Jan

Amazon India peering check

And here goes first blog post of 2018. Last few months went busy with some major changes in personal life. ūüôā

I looked into Amazon’s India connectivity with various ASNs tonight. Here’s how it looks like. (Note: Jump to bottom most to skip traces and look at the summary data).


Amazon India to Vodafone India


Amazon India to IDEA


Amazon India to Reliance Communications


Amazon India to Powergrid Corp


Amazon India to BSNL


Trace from Amazon India to Google’s anycasted


Amazon India to Microsoft Azure India


Amazon India to Cloudflare India PoP



Some traces where traffic going from Amazon India is getting routed to Indian networks from outside:


Summary of results

Network Name Network ASN Domestic Connectivity
Tata Communications 4755 Yes*
Airtel 9498 Yes*
Idea Cellular 55644 Yes
Reliance Communucations 18101 No
Aircel 10201 No
Powergrid Telecom 132215 Yes
Railtel 24186 Yes
BSNL 9829 No
NKN 55824 No
CtrlS 18229 No
Syscon Infoway 45194 No
Intech Online 58678 Yes
Charotar Broadband 132933 Yes
Ishan Tech 45117 Yes
Webwerks 33480 No
Blazenet 17625 Yes
Spectra 10029 Yes
Excitel Broadband 133982 Yes
Google 15169 Yes
Cloudflare 13335 No
Microsoft 8075 Yes


Misc points:

  1. *TCL and *Airtel seem to be IP transit provider of Amazon. For certain routes going outside India traffic seem to be going via Tata VSNL AS4755.
  2. Connectivity checked for certain random pools only and not for all announced routes for a large telco network.
22 Sep

RIPE Atlas India coverage and some thoughts

It has been some time since I started pushing Indian community for hosting RIPE Atlas Probes. These probes are small devices designed to be hosted at end user’s connection and do pre-defined as well as user-defined measurement. Measurement¬†includes ping, trace, DNS lookup, SSL check etc.

Currently, there are 61 active RIPE Atlas probes. I would say it has +/- of 7-8 probes which go offline and come back online when I request hosts to check.



Map of probes in India


I think now we about to reach a scenario where we should focus more around probes in specific regions and specific networks. Metro cities have some probes but outside are pretty much missing. Plus almost no probe in central India. In terms of ASN coverage, we can look at Hurricane Electric’s country report for top ASNs list –¬†https://bgp.he.net/country/IN


Following top ASNs IP network are missing from coverage of probe network:

  1. Reliance Communications  РAS18101
  2. Vodafone India – AS55410
  3. Sify – AS9583 (I recently shipped probes to them and expecting few to go online soon)
  4. TTSL – AS45820
  5. IDEA Cellular – AS55644
  6. Aircel – AS10201
  7. Syscon Infoway – AS45194
  8. CtrlS datacenter – AS18229
  9. Ishan’s Network –¬†AS45117
  10. Railtel Corp –¬†AS24186


In case you work for any of these networks or are a customer of these networks, please consider hosting RIPE Atlas probe. You can fill the form given below and I will send you a probe on priority.