$ query “AS12147” --type=asn → 1 result(s)

AS12147 — DFS-RWD

Discover Financial Services

AS12147 is operated by Discover Financial Services and serves as an enterprise stub network, based in the United States since 2005. The system announces 2 560 IPv4 addresses. The bulk of its IP address space is in the United States. No IPv6 support — it's 2026, just saying.

Basic Information

Country
🇺🇸 United States
Category
Business
Network Role
Stub Network
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
June 10, 2005
Last Changed
March 04, 2026
Last Seen
April 09, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
10 / 9
IPv6 Prefixes (raw / aggregated)
0 / 0
IPv4 Addresses
2 560
Largest IPv4 Prefix
/23 (512 addresses)
Geolocated Countries
🇺🇸 United States (2 560 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Pristine — 0 flagged IPs

Connectivity Summary

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

Upstream Providers (3)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS7018 — ATT-INTERNET4 (Tier-1 transit)
  • AS32787 — PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK

Prefix Lists

IPv4 Prefixes (10 total)

  • 208.88.90.0/23 (512 addresses (/23 prefix))
  • 170.217.161.0/24 (256 addresses (/24 prefix))
  • 170.217.252.0/24 (256 addresses (/24 prefix))
  • 170.217.254.0/24 (256 addresses (/24 prefix))
  • 199.38.149.0/24 (256 addresses (/24 prefix))
  • 199.38.150.0/24 (256 addresses (/24 prefix))
  • 199.38.153.0/24 (256 addresses (/24 prefix))
  • 199.38.154.0/24 (256 addresses (/24 prefix))
  • 208.88.88.0/24 (256 addresses (/24 prefix))