AS12147 Discover Financial Services

DFS-RWD - Discover Financial Services · registered in the United States

IPv4 addresses2,5609 prefixes · <0.001% of announced IPv4

Rank in United States#5,619largest network in US by IPv4 space, of 18,338 · <0.01% of US

Rank worldwide#19,987of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryUnited States18,679 ASNs registered there

Open AS12147 in ASN lookup Look up an IP in this network (170.217.161.1) All networks in United States

IPv4 prefixes

All 9 prefixes, in address order.

170.217.161.0/24
170.217.252.0/24
170.217.254.0/24
199.38.149.0/24
199.38.150.0/24
199.38.153.0/24
199.38.154.0/24
208.88.88.0/24
208.88.90.0/23

Other ASNs named Discover Financial Services

1 other network uses the same organisation name; together with AS12147 they announce 4,608 IPv4 addresses.

ASNNameIPv4 addresses

AS16432DFS-NAO - Discover Financial Services US2,048

Similar-sized networks in United States

ASNNameIPv4 addresses

AS11504#5616 QUMULUSAI - The Cloud Minders, Inc.2,560

AS11528#5617 PHOTRONICS - Photronics Inc.2,560

AS12105#5618 GCN-001 - Global Enterprise Solutions, Inc.2,560

AS12152#5620 AS12152 - Ascensus, LLC.2,560

AS12171#5621 FASTENTERPRISES - Fast Enterprises, LLC2,560

AS12223#5622 AS-EQUIVOICE-COM - MNJ Technology Services LLC2,560

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources