$ query “AS25248” --type=asn → 1 result(s)
AS25248 · BLUETONE-AS
RADIOKOMUNIKACE a.s.
AS25248 is operated by RADIOKOMUNIKACE a.s. and serves as a mid-size transit provider, registered in Czechia since 2002. The system announces a solid 106 752 IPv4 addresses, including a /16, and supports IPv6. Most of its address space is geolocated to Czechia.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- #7 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
- September 20, 2002
- Last Changed
- March 04, 2026
- Last Seen
- October 21, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 5 / 5
- IPv6 Prefixes (raw / aggregated)
- 2 / 2
- IPv4 Addresses
- 106 752
- Largest IPv4 Prefix
- /16 (65 536 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇨🇿 Czechia (106 752 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 3 flagged IPs out of 106 752 total (0.00%)
Connectivity Summary
- Upstream Providers
- 3 upstreams providing transit
- Peers
- 26 networks exchanging traffic without transit
- Downstream Customers
- 25 downstreams buying transit
- Unclassified
- 2 unclassified BGP neighbors
- Degree
- 56 unique BGP neighbors
- Reach
- 33 networks in customer cone
Upstream Providers (3)
Prefix Lists
IPv4 Prefixes (5 total)
- 85.207.0.0/16 (65 536 addresses (/16 prefix))
- 82.99.128.0/18 (16 384 addresses (/18 prefix))
- 84.244.64.0/18 (16 384 addresses (/18 prefix))
- 212.158.128.0/19 (8 192 addresses (/19 prefix))
- 193.32.56.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (2 total)
- 2a02:a40::/32
- 2001:67c:2100::/48