bgpreport

Exchanges · data from 2026-11-12

AMS-IX Kolkata Amsterdam Internet Exchange Kolkata

Kolkata, IN · members from IX Report (2026-11-12)

6Members 5 originate routes
10,249Their routes 91.2% RPKI valid · 89.6% with a route object
385RPKI invalid from 3 members
512No ROA 1,068 with no route object for their origin
5AS-SET includes own ASN 0 missing it · 0 not found · 0 none
5Route-server members 753 of their 10,249 routes left out by an RPKI + IRR filter

Route servers: RPKI + IRR filtering

For each member on the route servers: of the routes it originates, how many a route server would leave out if it dropped RPKI-invalid routes and filtered on the IRR the way IXP route servers commonly build their prefix lists: the member's AS-SETs from PeeringDB (with none, its own AS number), expanded as bgpq4 does against whois.radb.net, with more-specifics of a route object accepted down to /24 and /48 (bgpq4 -A -R 24 / -R 48). 385 routes are RPKI invalid and 746 fail the IRR filter. Only each member's own routes are counted: the collectors show a route's origin, not which network it came through, so customers' routes aren't in these numbers. Route objects only in LEVEL3 or IDNIC (no public dump) count as missing.

AS9583Sify Technologies Limited AS9583:AS-SIFY 2,876 362 645 652 23%
AS20940Akamai Technologies RIPE::AS-AKAMAI 4,825 22 78 78 2%
AS54113Fastly, Inc. AS54113:AS-FASTLY 1,861 1 23 23 1%

2 other route-server members would have every route they originate accepted.

Members

Every member on IX Report's lists for AMS-IX Kolkata, with the routes it originates. Also as members.csv.

AS20940Akamai Technologies Yes 4,8254,037 v4 · 788 v6 99% 22 97% includes own ASN
AS9583Sify Technologies Limited Yes 2,8762,363 v4 · 513 v6 71% 362 76% includes own ASN
AS54113Fastly, Inc. Yes 1,861613 v4 · 1,248 v6 100% 1 86% includes own ASN
AS32934Meta Yes 639272 v4 · 367 v6 96% 0 100% includes own ASN
AS149765Coronet Corporation Limited Yes 488 v4 · 40 v6 100% 0 100% includes own ASN
AS141809AMS-IX Kolkata Route Servers No none seen