bgpreport

Exchanges · data from 2026-11-12

MX-IX Kolkata

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

34Members 27 originate routes
10,230Their routes 90.0% RPKI valid · 89.9% with a route object
450RPKI invalid from 6 members
570No ROA 1,031 with no route object for their origin
21AS-SET includes own ASN 0 missing it · 0 not found · 4 none
29Route-server members 804 of their 8,843 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). 450 routes are RPKI invalid and 792 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%
AS58717Summit Communications Limited AS58717 AS58717:AS-SUMMITCOMMUNICATIONS-BD 145 53 53 53 37%
AS42PCH AS42 RADB::AS-PCH 418 0 6 6 1%
AS151690FAB FIVE NETWORK PRIVATE LIMITED AS151690:AS-FAB1 45 6 2 6 13%
AS154455INSTANET AS154455:AS-AYUSMATI 24 6 6 6 25%
AS7500M-ROOT DNS Server RADB::AS-M-ROOT 6 0 1 1 17%
AS139009Windstream Communication Limited AS-WCL-BD 62 1 0 1 2%
AS151712Multireach Broadband Services Private Limited AS151712:AS-MULTIREACHBROADBANDSERVICES 14 0 1 1 7%

14 other route-server members would have every route they originate accepted; 6 originate no routes the collectors see.

Members

Every member on IX Report's lists for MX-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
AS24186Railtel Corporation Of India No 669534 v4 · 135 v6 100% 0 80% includes own ASN
AS32934Meta No 639272 v4 · 367 v6 96% 0 100% includes own ASN
AS42PCH AS42 Yes 418210 v4 · 208 v6 99% 0 95% includes own ASN
AS138754Kerala Vision Broadband Limited Yes 296275 v4 · 21 v6 84% 0 100% includes own ASN
AS58717Summit Communications Limited AS58717 Yes 14559 v4 · 86 v6 63% 53 59% includes own ASN
AS139009Windstream Communication Limited Yes 6232 v4 · 30 v6 98% 1 98% includes own ASN
AS150748Gmax No 557 v4 · 48 v6 100% 0 100% includes own ASN
AS45775WISH NET Yes 5049 v4 · 1 v6 96% 0 100% AS number only
AS151690FAB FIVE NETWORK PRIVATE LIMITED Yes 4537 v4 · 8 v6 84% 6 91% includes own ASN
AS150178Exabyte AS150178 No 249 v4 · 15 v6 100% 0 100% includes own ASN
AS154455INSTANET Yes 2415 v4 · 9 v6 75% 6 75% includes own ASN
AS149268ROARNET Yes 1613 v4 · 3 v6 100% 0 100% includes own ASN
AS151712Multireach Broadband Services Private Limited Yes 1413 v4 · 1 v6 86% 0 93% includes own ASN
AS135760Speednet Unique Network Yes 1311 v4 · 2 v6 100% 0 100% includes own ASN
AS141490Bhorer Alo Cable And Broadband Yes 109 v4 · 1 v6 100% 0 100% includes own ASN
AS142485Sundaram Broadband Private Limited Yes 85 v4 · 3 v6 100% 0 100% includes own ASN
AS132884Summit Communications Limited AS132884 Yes 73 v4 · 4 v6 100% 0 100% includes own ASN
AS133240WAVETREE NETWORKS Yes 76 v4 · 1 v6 100% 0 100% AS number only
AS134302Oxynet Telecommunications Yes 77 v4 · 0 v6 100% 0 100% includes own ASN
AS7500M-ROOT DNS Server Yes 65 v4 · 1 v6 50% 0 83% includes own ASN
AS133643BASIS Technologies Yes 55 v4 · 0 v6 40% 0 100% none in PeeringDB
AS147255TJ Broadband Yes 44 v4 · 0 v6 100% 0 100% none in PeeringDB
AS3856PCH AS3856 Yes 21 v4 · 1 v6 100% 0 100% includes own ASN
AS23726IIFON Research Network Yes 21 v4 · 1 v6 100% 0 100% none in PeeringDB
AS50839C1V Yes 11 v4 · 0 v6 100% 0 100% none in PeeringDB
AS32261Subspace Yes none seen
AS45335IKF Technologies Ltd Yes none seen
AS132921MX-IX Kolkata Route Servers Yes none seen
AS139495Stromnet Communication Yes none seen
AS141014Balaji Teleworks Development Pvt Ltd Yes none seen
AS146951ISC F-ROOT CCU1 Yes none seen
AS150591ALEXA BROADBAND SERVICE LLP No none seen