$ query “AS21453” --type=asn → 1 result(s)
AS21453 · FLEX-AS
Flex Ltd.
AS21453 is owned by Flex Ltd. and is a mid-size transit provider, registered in Russia since 2002. The system announces a solid 121 856 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to Russia.
- Top 5% — Top 5% of all autonomous systems by reach and degree
Basic Information
- Country
- 🇷🇺 Russia
- Category
- Internet Service Provider
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- June 26, 2002
- Last Changed
- March 04, 2026
- Last Seen
- April 28, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 17 / 10
- IPv6 Prefixes (raw / aggregated)
- 2 / 1
- IPv4 Addresses
- 121 856
- Largest IPv4 Prefix
- /17 (32 768 addresses)
- Largest IPv6 Prefix
- /30
- Geolocated Countries
- 🇷🇺 Russia (235 520 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Good — 5 flagged IPs out of 121 856 total (0.00%)
Connectivity Summary
- Upstream Providers
- 9 upstreams providing transit
- Peers
- 113 networks exchanging traffic without transit
- Downstream Customers
- 13 downstreams buying transit
- Unclassified
- 2 unclassified BGP neighbors
- Degree
- 137 unique BGP neighbors
- Reach
- 19 networks in customer cone
Upstream Providers (9)
Prefix Lists
IPv4 Prefixes (17 total)
- 94.253.0.0/17 (32 768 addresses (/17 prefix))
- 178.167.0.0/17 (32 768 addresses (/17 prefix))
- 95.183.64.0/18 (16 384 addresses (/18 prefix))
- 80.252.128.0/19 (8 192 addresses (/19 prefix))
- 88.84.192.0/19 (8 192 addresses (/19 prefix))
- 178.57.224.0/19 (8 192 addresses (/19 prefix))
- 212.7.224.0/19 (8 192 addresses (/19 prefix))
- 80.84.112.0/20 (4 096 addresses (/20 prefix))
- 31.31.64.0/21 (2 048 addresses (/21 prefix))
- 185.5.148.0/22 (1 024 addresses (/22 prefix))
IPv6 Prefixes (2 total)
- 2a01:4200::/30