$ query “AS12437” --type=asn → 1 result(s)
AS12437 · DTS-SYSTEME-MUENSTER
DTS Systeme Muenster GmbH
AS12437 is operated by DTS Systeme Muenster GmbH and serves as a residential access provider, based in Germany since 2002. The system announces 9 216 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Germany.
Basic Information
- Country
- 🇩🇪 Germany
- Category
- Internet Service Provider
- Network Role
- Access Provider
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- May 06, 2002
- Last Changed
- July 01, 2026
- Last Seen
- July 27, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 5 / 4
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 9 216
- Largest IPv4 Prefix
- /19 (8 192 addresses)
- Largest IPv6 Prefix
- /29
- Geolocated Countries
- 🇩🇪 Germany (17 408 IPs)
- Prefix Changed
- May 21, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 2 upstreams providing transit
- Downstream Customers
- 1 downstream buying transit
- Degree
- 3 unique BGP neighbors
- Reach
- 1 network in customer cone
Upstream Providers (2)
Prefix Lists
IPv4 Prefixes (5 total)
- 212.101.192.0/19 (8 192 addresses (/19 prefix))
- 81.89.224.0/23 (512 addresses (/23 prefix))
- 84.201.96.0/24 (256 addresses (/24 prefix))
- 212.62.79.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (1 total)
- 2a06:7880::/29