$ query “AS16905” --type=asn → 1 result(s)
AS16905 · LEARN-RESEARCH
LEARN
AS16905 is operated by LEARN and serves as a mid-size transit provider, based in the United States since 2000. The system announces 1 280 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United States.
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
- June 28, 2000
- Last Changed
- March 04, 2026
- Last Seen
- April 29, 2026 (active)
Prefix Summary
- IPv4 Prefixes (raw / aggregated)
- 5 / 4
- IPv6 Prefixes (raw / aggregated)
- 2 / 2
- IPv4 Addresses
- 1 280
- Largest IPv4 Prefix
- /23 (512 addresses)
- Largest IPv6 Prefix
- /48
- Geolocated Countries
- 🇺🇸 United States (1 280 IPs)
- Prefix Changed
- March 04, 2026
Reputation
- Reputation
- Pristine — 0 flagged IPs
Connectivity Summary
- Upstream Providers
- 1 upstream providing transit
- Peers
- 4 networks exchanging traffic without transit
- Downstream Customers
- 28 downstreams buying transit
- Degree
- 33 unique BGP neighbors
- Reach
- 48 networks in customer cone
Upstream Providers (1)
- AS11537 — INTERNET2-RESEARCH-EDU
Prefix Lists
IPv4 Prefixes (5 total)
- 74.200.186.0/23 (512 addresses (/23 prefix))
- 74.200.148.0/24 (256 addresses (/24 prefix))
- 74.200.150.0/24 (256 addresses (/24 prefix))
- 74.200.179.0/24 (256 addresses (/24 prefix))
IPv6 Prefixes (2 total)
- 2607:f928:2::/48
- 2607:f928:12::/48