bgpreport

Exchanges · data from 2026-11-12

Stuttgart-IX Stuttgarter Internet eXchange, Stuttgart-IX

Stuttgart, DE · members from IX Report (2026-11-12)

38Members 37 originate routes
12,744Their routes 92.9% RPKI valid · 90.3% with a route object
392RPKI invalid from 7 members
518No ROA 1,232 with no route object for their origin
32AS-SET includes own ASN 0 missing it · 0 not found · 4 none
37Route-server members 662 of their 12,736 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). 392 routes are RPKI invalid and 396 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.

AS6461Zayo RIPE::AS-MFNX 587 326 263 518 88%
AS20940Akamai Technologies RIPE::AS-AKAMAI 4,825 22 78 78 2%
AS13335Cloudflare ARIN::AS13335:AS-CLOUDFLARE 6,020 25 26 37 1%
AS553BelWü RIPE::AS-BELWUE 112 11 12 12 11%
AS42PCH AS42 RADB::AS-PCH 418 0 6 6 1%
AS112DNS-OARC-112 AS112 8 4 4 4 50%
AS33891Core-Backbone AS33891:AS-CORE-BACKBONE 4 3 4 4 100%
AS20676Plusnet GmbH AS20676:AS-PLN 89 0 2 2 2%
AS5405Inter.link RIPE::AS5405:AS-INTERDOTLINK 63 1 1 1 2%

27 other route-server members would have every route they originate accepted; 1 originate no routes the collectors see.

Members

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

AS13335Cloudflare Yes 6,0202,780 v4 · 3,240 v6 95% 25 91% includes own ASN
AS20940Akamai Technologies Yes 4,8254,037 v4 · 788 v6 99% 22 97% includes own ASN
AS6461Zayo Yes 587373 v4 · 214 v6 27% 326 9% includes own ASN
AS42PCH AS42 Yes 418210 v4 · 208 v6 99% 0 95% includes own ASN
AS63293Meta AS63293 Yes 17998 v4 · 81 v6 87% 0 100% includes own ASN
AS553BelWü Yes 112108 v4 · 4 v6 89% 11 89% includes own ASN
AS20676Plusnet GmbH Yes 8984 v4 · 5 v6 76% 0 98% includes own ASN
AS41998NetCom BW Yes 6764 v4 · 3 v6 100% 0 100% includes own ASN
AS5405Inter.link Yes 6313 v4 · 50 v6 98% 1 98% includes own ASN
AS62336PURtel.com Yes 4741 v4 · 6 v6 100% 0 100% includes own ASN
AS21263TeleData GmbH Yes 4639 v4 · 7 v6 100% 0 100% includes own ASN
AS48918Globalways Yes 4435 v4 · 9 v6 64% 0 95% includes own ASN
AS200924Stiegeler Internet Service Yes 4235 v4 · 7 v6 93% 0 100% includes own ASN
AS6805Telefónica Germany GmbH & Co. OHG Yes 3733 v4 · 4 v6 100% 0 100% includes own ASN
AS39702S-IT Informationstechnologie Betreiber GmbH & Co. KG Yes 2316 v4 · 7 v6 70% 0 100% includes own ASN
AS20677imos Yes 2220 v4 · 2 v6 41% 0 100% includes own ASN
AS59745AtlasEdge Yes 1914 v4 · 5 v6 89% 0 100% includes own ASN
AS48284SWU TeleNet GmbH Yes 1110 v4 · 1 v6 91% 0 100% includes own ASN
AS57154Stadtwerke Konstanz Yes 117 v4 · 4 v6 91% 0 73% includes own ASN
AS112DNS-OARC-112 Yes 86 v4 · 2 v6 50% 4 50% AS number only
AS12374LFNET-AS01 No 87 v4 · 1 v6 0% 0 100% none in PeeringDB
AS12502Nepustil AS12502 Yes 86 v4 · 2 v6 100% 0 100% includes own ASN
AS33843Nepustil AS33843 Yes 64 v4 · 2 v6 100% 0 100% includes own ASN
AS209846SWP Stadtwerke Pforzheim GmbH & Co. KG Yes 65 v4 · 1 v6 100% 0 100% not in PeeringDB
AS47138PLANinterNET GmbH Yes 54 v4 · 1 v6 0% 0 20% none in PeeringDB
AS47147ANX Yes 53 v4 · 2 v6 80% 0 100% includes own ASN
AS202707omnidat Yes 55 v4 · 0 v6 100% 0 100% includes own ASN
AS6735TNG Stadtnetz GmbH (ex sdt.net) Yes 44 v4 · 0 v6 100% 0 100% includes own ASN
AS33891Core-Backbone Yes 44 v4 · 0 v6 0% 3 0% includes own ASN
AS210967indasys IT Systemhaus AG Yes 43 v4 · 1 v6 100% 0 100% includes own ASN
AS212232BGP.Tools Route Collector Yes 40 v4 · 4 v6 100% 0 100% includes own ASN
AS25058CMO Internet Dienstleistungen Yes 32 v4 · 1 v6 0% 0 100% includes own ASN
AS198818ISP Service eG Yes 32 v4 · 1 v6 100% 0 100% includes own ASN
AS208772Freifunk Stuttgart Yes 31 v4 · 2 v6 100% 0 100% includes own ASN
AS3856PCH AS3856 Yes 21 v4 · 1 v6 100% 0 100% includes own ASN
AS211651Landeshauptstadt Stuttgart Yes 21 v4 · 1 v6 100% 0 100% none in PeeringDB
AS212522Stuttgart-IX Infrastructure Yes 21 v4 · 1 v6 100% 0 100% includes own ASN
AS41139Stuttgart-IX Route Servers Yes none seen