$ query “AS199803” --type=asn → 1 result(s)
AS199803 · COMSOURCE
ComSource s.r.o.
AS199803 is operated by ComSource s.r.o. and serves as a mid-size transit provider, established in Czechia in 2014. The system announces 1 536 IPv4 addresses, and supports IPv6. Its primary geographic footprint is in Czechia.
- #9 in Czechia — Top 10 by reach within country
Basic Information
- Country
- 🇨🇿 Czechia
- Category
- Hosting
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- January 21, 2014
- Last Changed
- March 04, 2026
- Last Seen
- April 29, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 2 / 2
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 1 536
- Largest IPv4 Prefix
- /22 (1 024 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇨🇿 Czechia (2 560 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 3 upstreams providing transit
- Peers
- 17 networks exchanging traffic without transit
- Downstream Customers
- 9 downstreams buying transit
- Degree
- 29 unique BGP neighbors
- Reach
- 63 networks in customer cone
Upstream Providers (3)
Prefix Lists
IPv4 Prefixes (2 total)
- 185.45.200.0/22 (1 024 addresses (/22 prefix))
- 185.138.108.0/23 (512 addresses (/23 prefix))
IPv6 Prefixes (1 total)
- 2a01:7fe0::/32