$ query “AS205394” --type=asn → 1 result(s)
AS205394 · CSLDUAL-AS
CSL (DualCom) Limited
AS205394 is operated by CSL (DualCom) Limited and serves as an enterprise access provider, established in the United Kingdom in 2017. The system announces 5 632 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in the United Kingdom, with additional presence in the Netherlands.
Basic Information
- Country
- 🇬🇧 United Kingdom
- Category
- Business
- Network Role
- Access Provider
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- September 06, 2017
- Last Changed
- September 01, 2026
- Last Seen
- September 06, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 18 / 5
- IPv6 Prefixes (raw / aggregated)
- 5 / 1
- IPv4 Addresses
- 5 632
- Largest IPv4 Prefix
- /21 (2 048 addresses)
- Largest IPv6 Prefix
- /29
- Geolocated Countries
- 🇬🇧 United Kingdom (10 496 IPs), 🇳🇱 Netherlands (768 IPs)
- Prefix Changed
- July 10, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 9 upstreams providing transit
- Downstream Customers
- 1 downstream buying transit
- Degree
- 10 unique BGP neighbors
- Reach
- 1 network in customer cone
Upstream Providers (9)
Prefix Lists
IPv4 Prefixes (18 total)
- 46.226.72.0/21 (2 048 addresses (/21 prefix))
- 139.28.100.0/22 (1 024 addresses (/22 prefix))
- 185.176.124.0/22 (1 024 addresses (/22 prefix))
- 185.201.164.0/22 (1 024 addresses (/22 prefix))
- 185.180.172.0/23 (512 addresses (/23 prefix))
IPv6 Prefixes (5 total)
- 2a0a:c840::/29