$ query “AS111” --type=asn → 1 result(s)

AS111 · BOSTONU-AS

Boston University

AS111 is owned by Boston University and is an educational/research stub network, registered in the United States since 1987. The system announces a solid 133 376 IPv4 addresses, including a /16, 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
Stub Network
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
May 11, 1987
Last Changed
September 01, 2026
Last Seen
September 14, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
11 / 8
IPv6 Prefixes (raw / aggregated)
1 / 1
IPv4 Addresses
133 376
Largest IPv4 Prefix
/16 (65 536 addresses)
Largest IPv6 Prefix
/28
Geolocated Countries
🇺🇸 United States (199 680 IPs)
Prefix Changed
April 01, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
4 upstreams providing transit
Degree
4 unique BGP neighbors
Reach
0 networks in customer cone

Upstream Providers (4)

  • AS174 — COGENT (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS11164 — INTERNET2-I2PX (Tier-1 transit)
  • AS11537 — INTERNET2-RESEARCH-EDU

Prefix Lists

IPv4 Prefixes (11 total)

  • 128.197.0.0/16 (65 536 addresses (/16 prefix))
  • 168.122.0.0/16 (65 536 addresses (/16 prefix))
  • 192.5.206.0/23 (512 addresses (/23 prefix))
  • 192.12.186.0/23 (512 addresses (/23 prefix))
  • 192.12.190.0/23 (512 addresses (/23 prefix))
  • 192.12.185.0/24 (256 addresses (/24 prefix))
  • 192.12.189.0/24 (256 addresses (/24 prefix))
  • 192.54.224.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (1 total)

  • 2631:5000::/28