$ query “AS42184” --type=asn → 1 result(s)

AS42184 · AS-TKRZ

TKRZ Stadtwerke GmbH

AS42184 is operated by TKRZ Stadtwerke GmbH and serves as a mid-size transit provider, based in Germany since 2007. The system announces a respectable 18 688 IPv4 addresses, and supports IPv6. Its primary geographic footprint is in Germany.

  • Top 5% — Top 5% of all autonomous systems by reach and degree

Basic Information

Country
🇩🇪 Germany
Category
Hosting
Network Role
Mid-size Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
January 10, 2007
Last Changed
March 04, 2026
Last Seen
June 22, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
13 / 13
IPv6 Prefixes (raw / aggregated)
1 / 1
IPv4 Addresses
18 688
Largest IPv4 Prefix
/20 (4 096 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇩🇪 Germany (34 048 IPs)
Prefix Changed
March 12, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
5 upstreams providing transit
Peers
147 networks exchanging traffic without transit
Downstream Customers
11 downstreams buying transit
Unclassified
6 unclassified BGP neighbors
Degree
169 unique BGP neighbors
Reach
11 networks in customer cone

Upstream Providers (5)

  • AS174 — COGENT (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS3320 — DTAG (Tier-1 transit)
  • AS33891 — CORE-BACKBONE

Prefix Lists

IPv4 Prefixes (13 total)

  • 89.251.128.0/20 (4 096 addresses (/20 prefix))
  • 178.251.8.0/21 (2 048 addresses (/21 prefix))
  • 188.64.248.0/21 (2 048 addresses (/21 prefix))
  • 91.190.224.0/21 (2 048 addresses (/21 prefix))
  • 185.72.200.0/22 (1 024 addresses (/22 prefix))
  • 185.64.168.0/22 (1 024 addresses (/22 prefix))
  • 45.82.124.0/22 (1 024 addresses (/22 prefix))
  • 185.124.232.0/22 (1 024 addresses (/22 prefix))
  • 185.143.168.0/22 (1 024 addresses (/22 prefix))
  • 185.153.140.0/22 (1 024 addresses (/22 prefix))
  • 88.218.84.0/22 (1 024 addresses (/22 prefix))
  • 194.15.152.0/22 (1 024 addresses (/22 prefix))
  • 194.49.22.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (1 total)

  • 2a02:f08::/32