Exchanges · data from 2026-11-12
Stuttgart-IX Stuttgarter Internet eXchange, Stuttgart-IX
Stuttgart, DE · members from IX Report (2026-11-12)
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 | 6,0202,780 v4 · 3,240 v6 | 95% | 25 |
| AS20940Akamai Technologies | 4,8254,037 v4 · 788 v6 | 99% | 22 |
| AS6461Zayo | 587373 v4 · 214 v6 | 27% | 326 |
| AS42PCH AS42 | 418210 v4 · 208 v6 | 99% | 0 |
| AS63293Meta AS63293 | 17998 v4 · 81 v6 | 87% | 0 |
| AS553BelWü | 112108 v4 · 4 v6 | 89% | 11 |
| AS20676Plusnet GmbH | 8984 v4 · 5 v6 | 76% | 0 |
| AS41998NetCom BW | 6764 v4 · 3 v6 | 100% | 0 |
| AS5405Inter.link | 6313 v4 · 50 v6 | 98% | 1 |
| AS62336PURtel.com | 4741 v4 · 6 v6 | 100% | 0 |
| AS21263TeleData GmbH | 4639 v4 · 7 v6 | 100% | 0 |
| AS48918Globalways | 4435 v4 · 9 v6 | 64% | 0 |
| AS200924Stiegeler Internet Service | 4235 v4 · 7 v6 | 93% | 0 |
| AS6805Telefónica Germany GmbH & Co. OHG | 3733 v4 · 4 v6 | 100% | 0 |
| AS39702S-IT Informationstechnologie Betreiber GmbH & Co. KG | 2316 v4 · 7 v6 | 70% | 0 |
| AS20677imos | 2220 v4 · 2 v6 | 41% | 0 |
| AS59745AtlasEdge | 1914 v4 · 5 v6 | 89% | 0 |
| AS48284SWU TeleNet GmbH | 1110 v4 · 1 v6 | 91% | 0 |
| AS57154Stadtwerke Konstanz | 117 v4 · 4 v6 | 91% | 0 |
| AS112DNS-OARC-112 | 86 v4 · 2 v6 | 50% | 4 |
| AS12374LFNET-AS01 | 87 v4 · 1 v6 | 0% | 0 |
| AS12502Nepustil AS12502 | 86 v4 · 2 v6 | 100% | 0 |
| AS33843Nepustil AS33843 | 64 v4 · 2 v6 | 100% | 0 |
| AS209846SWP Stadtwerke Pforzheim GmbH & Co. KG | 65 v4 · 1 v6 | 100% | 0 |
| AS47138PLANinterNET GmbH | 54 v4 · 1 v6 | 0% | 0 |
| AS47147ANX | 53 v4 · 2 v6 | 80% | 0 |
| AS202707omnidat | 55 v4 · 0 v6 | 100% | 0 |
| AS6735TNG Stadtnetz GmbH (ex sdt.net) | 44 v4 · 0 v6 | 100% | 0 |
| AS33891Core-Backbone | 44 v4 · 0 v6 | 0% | 3 |
| AS210967indasys IT Systemhaus AG | 43 v4 · 1 v6 | 100% | 0 |
| AS212232BGP.Tools Route Collector | 40 v4 · 4 v6 | 100% | 0 |
| AS25058CMO Internet Dienstleistungen | 32 v4 · 1 v6 | 0% | 0 |
| AS198818ISP Service eG | 32 v4 · 1 v6 | 100% | 0 |
| AS208772Freifunk Stuttgart | 31 v4 · 2 v6 | 100% | 0 |
| AS3856PCH AS3856 | 21 v4 · 1 v6 | 100% | 0 |
| AS211651Landeshauptstadt Stuttgart | 21 v4 · 1 v6 | 100% | 0 |
| AS212522Stuttgart-IX Infrastructure | 21 v4 · 1 v6 | 100% | 0 |
| AS41139Stuttgart-IX Route Servers | none seen |