$ query “AS7521” --type=asn → 1 result(s)
AS7521 · MFEED
INTERNET MULTIFEED CO.
AS7521 belongs to INTERNET MULTIFEED CO. and is a residential access provider, registered in Japan. The system announces 4 864 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in Japan.
Basic Information
- Country
- 🇯🇵 Japan
- Category
- Internet Service Provider
- Network Role
- Access Provider
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Last Changed
- October 03, 2026
- Last Seen
- October 23, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 8 / 8
- IPv6 Prefixes (raw / aggregated)
- 1 / 1
- IPv4 Addresses
- 4 864
- Largest IPv4 Prefix
- /21 (2 048 addresses)
- Largest IPv6 Prefix
- /32
- Geolocated Countries
- 🇯🇵 Japan (4 864 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Downstream Customers
- 4 downstreams buying transit
- Unclassified
- 3 unclassified BGP neighbors
- Degree
- 7 unique BGP neighbors
- Reach
- 7 networks in customer cone
Prefix Lists
IPv4 Prefixes (8 total)
- 210.173.160.0/21 (2 048 addresses (/21 prefix))
- 210.173.180.0/22 (1 024 addresses (/22 prefix))
- 210.173.186.0/23 (512 addresses (/23 prefix))
- 115.69.237.0/24 (256 addresses (/24 prefix))
- 210.173.168.0/24 (256 addresses (/24 prefix))
- 210.173.170.0/24 (256 addresses (/24 prefix))
- 210.173.172.0/24 (256 addresses (/24 prefix))
- 210.173.178.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (1 total)
- 2001:3a0::/32