AS553 BelWü 🇩🇪 DE

Universitaet Stuttgart. Announcing 100 prefixes, seen at the RIS collectors.

IPv4 prefixes

2,325,504 (9,084 × /24)

IPv6 prefixes

25 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

ASes reachable through it

Registry and operator data

AS number: AS553
Name: BelWü
Organisation: BelWü
Country: 🇩🇪 DE
RIR: RIPENCC
Allocated: 1993-09-01
Network type: Educational/Research
Traffic levels: 100-200Gbps
Scope: Regional
Peering policy: Open
IRR as-set: AS-BELWUE
Website: http://www.belwue.de
Looking glass: https://www.belwue.de/tools/looking-glass.html
PeeringDB: net/1170
Exchanges: 5
Facilities: 6

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

100 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Upstreams

Networks seen providing transit to this one

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS1299 Arelion (fka. Telia Carrier)	🇸🇪 SE	68,702	135	2,505	CAIDA
AS2914 NTT America, Inc.	🇺🇸 US	55,552	1,476	928	CAIDA
AS3320 Deutsche Telekom AG	🇩🇪 DE	50,499	910	523	CAIDA
AS680 Deutsches Forschungsnetz (DFN)	🇩🇪 DE	69	294	458	CAIDA
AS56662 Marcin Gondek	🇵🇱 PL	0	0	27	inferred

Peers

Adjacencies that look settlement-free rather than transit

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS6939 Hurricane Electric LLC	🇺🇸 US	54,151	185	988	CAIDA
AS9002 RETN Limited	🇬🇧 GB	51,303	18	806	CAIDA
AS20485 TransTeleCom JSC	🇷🇺 RU	30,490	85	188	CAIDA
AS33891 Core-Backbone GmbH	🇩🇪 DE	27,067	1	189	CAIDA
AS37721 Virtual Technologies & Solutions	🇧🇫 BF	23,868	64	200	CAIDA
AS34549 meerfarbig GmbH & Co. KG	🇩🇪 DE	15,645	48	252	CAIDA
AS24482 SG.GS	🇸🇬 SG	4,857	45	208	CAIDA
AS17639 Converge ICT Solutions Inc.	🇵🇭 PH	274	567	129	CAIDA
AS42708 Glesys AB	🇸🇪 SE	106	210	202	CAIDA
AS12779 IT.Gate S.p.A.	🇮🇹 IT	76	25	2	CAIDA
AS29632 Netassist International EOOD	🇧🇬 BG	46	0	71	CAIDA
AS1836 green.ch AG	🇨🇭 CH	45	78	204	CAIDA
AS12859 BIT BV	🇳🇱 NL	41	66	1	CAIDA
AS34019 Hivane Association	🇫🇷 FR	38	6	216	CAIDA
AS48362 Stadtwerke Feldkirch	🇦🇹 AT	16	8	1	CAIDA
AS25538 Internet Ulm/Neu-Ulm e.V.	🇩🇪 DE	2	3	12	CAIDA
AS49432 Dominic Schallert trading as schallert.com e.U.	🇦🇹 AT	0	1	241	CAIDA
AS212024 Marc Schmitt	🇫🇷 FR	0	1	221	CAIDA
AS213241 TECHIT.BE SRL	🇧🇪 BE	0	14	38	CAIDA

Downstreams

Networks this one appears to provide transit to

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS212522 ISP Service eG	🇩🇪 DE	17	1	235	CAIDA
AS204680 KIT Student	🇩🇪 DE	5	1	560	CAIDA
AS34878 Karlsruhe Institute of Technology	🇩🇪 DE	3	4	376	CAIDA
AS5501 Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.	🇩🇪 DE	0	38	1,273	CAIDA
AS60824 Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.	🇩🇪 DE	0	27	953	CAIDA
AS42873 Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V.	🇩🇪 DE	0	6	286	CAIDA
AS50964 civillent GmbH	🇩🇪 DE	0	21	200	CAIDA
AS219090 Temporaerhaus e.V.	🇩🇪 DE	0	1	88	CAIDA
AS215185 Entropia e.V.	🇩🇪 DE	0	1	76	CAIDA
AS202113 plan b. solutions GmbH	🇩🇪 DE	0	4	60	CAIDA
AS203703 IT Baden-Württemberg (BITBW)	🇩🇪 DE	0	1	48	CAIDA
AS213068 Karlsruhe Institute of Technology	🇩🇪 DE	0	2	41	CAIDA
AS49739 Regionale Kliniken Holding RKH GmbH	🇩🇪 DE	0	1	41	CAIDA
AS35052 ACONET	🇦🇹 AT	0	2	40	CAIDA
AS39100 Stadtverwaltung Pforzheim	🇩🇪 DE	0	1	39	CAIDA
AS204310 Synergies GmbH	🇩🇪 DE	0	2	29	CAIDA

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.