$ query “AS1280” --type=asn → 1 result(s)

AS1280 · ISC-AS-1280

Internet Systems Consortium Inc.

AS1280 is owned by Internet Systems Consortium Inc. and is an enterprise access provider, established in the United States in 1991. The system announces a respectable 23 552 IPv4 addresses, and supports IPv6. Most of its address space is geolocated to the United States, with additional presence in Australia.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Pioneer — Registered before the year 2000

Basic Information

Country
🇺🇸 United States
Category
Business
Network Role
Access Provider
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
July 31, 1991
Last Changed
March 04, 2026
Last Seen
June 27, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
93 / 20
IPv6 Prefixes (raw / aggregated)
7 / 1
IPv4 Addresses
23 552
Largest IPv4 Prefix
/20 (4 096 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇺🇸 United States (16 896 IPs), 🇦🇺 Australia (6 656 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

Upstream Providers
4 upstreams providing transit
Peers
58 networks exchanging traffic without transit
Downstream Customers
3 downstreams buying transit
Unclassified
1 unclassified BGP neighbor
Degree
66 unique BGP neighbors
Reach
10 networks in customer cone

Upstream Providers (4)

  • AS6939 — HURRICANE
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS7922 — COMCAST-7922

Prefix Lists

IPv4 Prefixes (93 total)

  • 149.20.32.0/20 (4 096 addresses (/20 prefix))
  • 149.20.16.0/20 (4 096 addresses (/20 prefix))
  • 204.152.184.0/21 (2 048 addresses (/21 prefix))
  • 149.20.80.0/21 (2 048 addresses (/21 prefix))
  • 149.20.72.0/21 (2 048 addresses (/21 prefix))
  • 149.20.48.0/21 (2 048 addresses (/21 prefix))
  • 149.20.60.0/22 (1 024 addresses (/22 prefix))
  • 149.20.12.0/22 (1 024 addresses (/22 prefix))
  • 149.20.92.0/22 (1 024 addresses (/22 prefix))
  • 149.20.0.0/23 (512 addresses (/23 prefix))
  • 149.20.58.0/23 (512 addresses (/23 prefix))
  • 149.20.64.0/23 (512 addresses (/23 prefix))
  • 149.20.90.0/23 (512 addresses (/23 prefix))
  • 149.20.6.0/23 (512 addresses (/23 prefix))
  • 149.20.10.0/24 (256 addresses (/24 prefix))
  • 149.20.8.0/24 (256 addresses (/24 prefix))
  • 149.20.88.0/24 (256 addresses (/24 prefix))
  • 149.20.56.0/24 (256 addresses (/24 prefix))
  • 192.111.107.0/24 (256 addresses (/24 prefix))
  • 192.158.252.0/24 (256 addresses (/24 prefix))

IPv6 Prefixes (7 total)

  • 2001:4f8::/32