Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Academic allocation +6
- Trust score 71 / 100
Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →
About BelWü
Educational organization in Baden-Württemberg.
Network profile
Source: PeeringDB →Present at 5 internet exchanges: DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN, Stuttgart-IX: PeeringLAN, MegaIX Frankfurt, BW-IX Karlsruhe: PeeringLAN, Rheintal IX: Peering-LAN
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS553 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 185.134.84.0/22 | 31,402 | 2026-10-31 11:04:03 |
| 129.206.0.0/16 | 25,197 | 2026-10-31 11:04:03 |
| 134.108.0.0/16 | 23,751 | 2026-10-31 11:04:04 |
| 147.142.0.0/16 | 23,699 | 2026-10-31 11:04:03 |
| 134.60.0.0/16 | 23,277 | 2026-10-31 11:04:03 |
| 161.42.0.0/16 | 21,529 | 2026-10-31 11:04:03 |
| 193.197.85.0/24 | 21,370 | 2026-10-31 11:04:04 |
| 193.196.130.0/23 | 21,092 | 2026-10-31 11:04:03 |
| 193.197.149.0/24 | 20,926 | 2026-10-31 11:04:04 |
| 193.196.129.0/24 | 20,548 | 2026-10-31 11:04:04 |
| 178.251.231.0/24 | 20,392 | 2026-10-31 11:04:04 |
| 193.197.64.0/22 | 20,342 | 2026-10-31 11:04:03 |
| 193.196.160.0/22 | 20,010 | 2026-10-31 11:04:03 |
| 193.196.64.0/18 | 19,557 | 2026-10-31 11:04:03 |
| 193.197.157.0/24 | 19,076 | 2026-10-31 11:04:04 |
| 193.197.180.0/22 | 18,577 | 2026-10-31 11:04:03 |
| 45.90.132.0/22 | 18,478 | 2026-10-31 11:04:03 |
| 193.197.80.0/22 | 18,025 | 2026-10-31 11:04:03 |
| 134.155.0.0/16 | 17,988 | 2026-10-31 11:04:03 |
| 192.108.40.0/22 | 17,847 | 2026-10-31 11:04:03 |
| 134.2.0.0/16 | 17,776 | 2026-10-31 11:04:03 |
| 132.230.0.0/16 | 17,759 | 2026-10-31 11:04:03 |
| 141.37.0.0/16 | 17,757 | 2026-10-31 11:04:03 |
| 192.108.36.0/22 | 17,741 | 2026-10-31 11:04:03 |
| 192.108.44.0/24 | 17,701 | 2026-10-31 11:04:03 |
| 192.108.35.0/24 | 17,681 | 2026-10-31 11:04:03 |
| 193.196.154.0/23 | 17,548 | 2026-10-31 11:04:03 |
| 141.10.0.0/16 | 17,508 | 2026-10-31 11:04:03 |
| 129.69.0.0/16 | 17,508 | 2026-10-31 11:04:04 |
| 193.196.13.0/24 | 17,433 | 2026-10-31 11:04:03 |
| 141.47.0.0/16 | 17,383 | 2026-10-31 11:04:03 |
| 192.52.48.0/23 | 17,357 | 2026-10-31 11:04:03 |
| 141.31.0.0/16 | 17,353 | 2026-10-31 11:04:03 |
| 144.41.0.0/16 | 17,345 | 2026-10-31 11:04:03 |
| 141.79.0.0/16 | 17,342 | 2026-10-31 11:04:03 |
| 141.87.0.0/16 | 17,320 | 2026-10-31 11:04:03 |
| 141.7.0.0/16 | 17,316 | 2026-10-31 11:04:03 |
| 193.196.192.0/18 | 17,311 | 2026-10-31 11:04:04 |
| 192.52.32.0/20 | 17,305 | 2026-10-31 11:04:03 |
| 193.196.166.0/23 | 17,279 | 2026-10-31 11:04:03 |
| 192.52.50.0/24 | 17,279 | 2026-10-31 11:04:03 |
| 193.197.94.0/24 | 17,223 | 2026-10-31 11:04:03 |
| 193.196.152.0/24 | 17,160 | 2026-10-31 11:04:04 |
| 192.67.208.0/24 | 17,156 | 2026-10-31 11:04:03 |
| 193.196.16.0/20 | 17,152 | 2026-10-31 11:04:03 |
| 141.62.0.0/17 | 17,113 | 2026-10-31 11:04:03 |
| 193.197.136.0/21 | 17,084 | 2026-10-31 11:04:04 |
| 193.197.168.0/21 | 17,042 | 2026-10-31 11:04:03 |
| 193.196.0.0/21 | 17,037 | 2026-10-31 11:04:03 |
| 193.197.132.0/22 | 17,032 | 2026-10-31 11:04:04 |
Showing top 50 of 105 announced prefixes by sample volume.
Frequently Asked Questions
What is AS553?
AS553 is an Autonomous System Number assigned to Universitaet Stuttgart. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS553 announce?
AS553 announces 2.11M IPv4 addresses distributed across 51 routed CIDR prefixes. The network is registered in Germany.
Who operates AS553?
AS553 is operated by Universitaet Stuttgart. The organization is based in Germany. You can view all IP ranges and related ASNs on the organization page.
What country is AS553 registered in?
AS553 is registered in Germany. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
