$ query “AS12387” --type=asn → 1 result(s)
AS12387 · TON
TON Total optical Networks AG
AS12387 is operated by TON Total optical Networks AG and serves as a mid-size transit provider, based in Switzerland. The system announces 9 216 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Switzerland, with additional presence in Liechtenstein.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇨🇭 Switzerland
- Category
- Hosting
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- March 04, 2026
- Last Seen
- April 14, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 4 / 2
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 9 216
- Largest IPv4 Prefix
- /19 (8 192 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇨🇭 Switzerland (18 432 IPs), 🇱🇮 Liechtenstein (64 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 6 upstreams providing transit
- Peers
- 101 networks exchanging traffic without transit
- Downstream Customers
- 25 downstreams buying transit
- Unclassified
- 2 unclassified BGP neighbors
- Degree
- 134 unique BGP neighbors
- Reach
- 25 networks in customer cone
Upstream Providers (6)
Prefix Lists
IPv4 Prefixes (4 total)
- 77.237.192.0/19 (8 192 addresses (/19 prefix))
- 195.4.176.0/22 (1 024 addresses (/22 prefix))
IPv6 Prefixes (1 total)
- 2a00:c10::/32