$ query “AS15958” --type=asn → 1 result(s)
AS15958 — CETIN-DOO-AS
CETIN Ltd. Belgrade
AS15958 is a mid-size transit provider run by CETIN Ltd. Belgrade, based in Serbia. The network announces a respectable 73 728 IPv4 addresses, including a /16. Supports IPv6.
- Top 5% — Top 5% of all autonomous systems by reach and degree
- #6 in Serbia — Top 10 by reach within country
Basic Information
- Country
- 🇷🇸 Serbia
- 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
- March 05, 2026
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 12 / 3
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 73 728
- Largest IPv4 Prefix
- /16 (65 536 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇷🇸 RS (6 IPs), 🇲🇪 ME (1 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 3 flagged IPs out of 73 728 total (0.00%)
- Open Proxies
- 1 known open proxies in this network
Connectivity Summary
- Upstream Providers
- 7 upstream autonomous systems providing transit
- Peers
- 146 autonomous systems exchanging traffic without transit fees
- Downstream Customers
- 23 downstream autonomous systems buying transit
- Degree
- 178 unique BGP neighbors (providers + customers + peers)
- Reach
- 35 — customer cone size measuring network influence
- Degree Rank
- #759
- Reach Rank
- #1 736
- Country Rank
- #6
Upstream Providers (7)
Prefix Lists
IPv4 Prefixes (12 total)
- 109.245.0.0/16 (65 536 addresses)
- 109.106.224.0/20 (4 096 addresses)
- 217.65.192.0/20 (4 096 addresses)
IPv6 Prefixes (1 total)
- 2a01:ac80::/32