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AS11273Fiserv Solutions, LLC

United StatesRegistryARIN

As of 24th October 2026, AS11273 (Fiserv Solutions, LLC), a network registered in the United States with ARIN, originates 145 IPv4 prefixes covering 181k addresses. By IPv4 address space that makes it the 1,462nd-largest of the 79,642 networks we see originating IPv4, and the 418th-largest of 18,487 in the United States. It is seen behind 2 upstream networks, most often AS55002 (F5, Inc.) and AS198949 (Radware). 73% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

145

IPv6 prefixes

0

IPv4 addresses

181k

IPv6 /64s

0

Upstream graph

The networks AS11273 is seen behind, one and two hops out, drawn from real AS paths.

AS11273Toward the internet core
Upstream graph for AS11273: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS11273Fiserv Solutions,…This networkAS55002F5, Inc.AS198949RadwareAS11404Astound (fka. Wav…AS35280F5 Networks SARLAS1299Arelion (fka. Tel…AS2914NTT America, Inc.

Networks observed one and two hops upstream of AS11273 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS11273
NetworkCountryRelationshipPathsVantage pts
AS55002F5, Inc.USPeer7,82876
AS198949RadwareILPeer3,19276

Prefixes

All 145

The largest blocks AS11273 originates, widest first.

Largest prefixes originated by AS11273
PrefixAddressesVisibility
167.16.0.0/1665.5k76/76
170.186.0.0/1665.5k76/76
208.72.248.0/212k76/76
216.66.216.0/212k76/76
50.58.8.0/221k76/76
192.131.68.0/221k76/76
208.93.24.0/221k76/76
216.66.216.0/221k76/76
216.66.220.0/221k76/76
12.184.102.0/2351276/76

Routing health

How AS11273's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid73.1%106
  • Invalid0.0%0
  • No ROA26.9%39

Propagation

  • Globally propagated90% of full-feed peers or more100.0%145
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 145 prefixes

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS11273 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.