$ query “AS21738” --type=asn → 1 result(s)
AS21738 · ROZINT
Rozint
AS21738 is run by Rozint and is a mid-size transit provider, registered in the United States since 2023. The system announces 2 048 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United States.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇺🇸 United States
- Category
- Hosting
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- March 17, 2023
- Last Changed
- March 04, 2026
- Last Seen
- August 10, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 5 / 4
- IPv6 Prefixes (raw / aggregated)
- 6 / 5
- IPv4 Addresses
- 2 048
- Largest IPv4 Prefix
- /22 (1 024 addresses)
- Largest IPv6 Prefix
- /39
- Geolocated Countries
- 🇺🇸 United States (2 816 IPs)
- Prefix Changed
- July 26, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 4 upstreams providing transit
- Peers
- 9 networks exchanging traffic without transit
- Downstream Customers
- 14 downstreams buying transit
- Unclassified
- 13 unclassified BGP neighbors
- Degree
- 40 unique BGP neighbors
- Reach
- 19 networks in customer cone
Upstream Providers (4)
Prefix Lists
IPv4 Prefixes (5 total)
- 216.40.92.0/22 (1 024 addresses (/22 prefix))
- 23.150.40.0/23 (512 addresses (/23 prefix))
- 43.255.189.0/24 (256 addresses (/24 prefix))
- 140.235.156.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (6 total)
- 2602:2b7:c00::/39
- 2602:2b7:40::/48
- 2602:2b7:c8::/48
- 2602:2b7:e1::/48
- 2602:2b7:600::/48