$ query “AS10578” --type=asn → 1 result(s)
AS10578 · GIGAPOP-NE
Harvard University
AS10578 is run by Harvard University and is a mid-size transit provider, established in the United States in 1997. The system announces a respectable 24 832 IPv4 addresses, and supports IPv6. The bulk of its IP address space is in the United States.
- Pioneer — Registered before the year 2000
Basic Information
- Country
- 🇺🇸 United States
- Category
- Education/Research
- Network Role
- Mid-size Transit
- Data Origin
- Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
- Registered
- September 19, 1997
- Last Changed
- March 04, 2026
- Last Seen
- April 29, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 4 / 4
- IPv6 Prefixes (raw / aggregated)
- 7 / 5
- IPv4 Addresses
- 24 832
- Largest IPv4 Prefix
- /19 (8 192 addresses)
- Largest IPv6 Prefix
- /36
- Geolocated Countries
- 🇺🇸 United States (24 832 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 3 upstreams providing transit
- Peers
- 4 networks exchanging traffic without transit
- Downstream Customers
- 15 downstreams buying transit
- Degree
- 22 unique BGP neighbors
- Reach
- 25 networks in customer cone
Upstream Providers (3)
Prefix Lists
IPv4 Prefixes (4 total)
- 18.2.0.0/19 (8 192 addresses (/19 prefix))
- 18.2.128.0/19 (8 192 addresses (/19 prefix))
- 18.2.192.0/19 (8 192 addresses (/19 prefix))
- 192.5.89.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (7 total)
- 2603:40ff:2000::/36
- 2603:40ff:4000::/36
- 2603:40ff:6000::/36
- 2001:468:600::/40
- 2001:504:2e::/48