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AS19602Cantor Fitzgerald & Co.

United StatesRegistryARIN

As of 11th November 2026, AS19602 (Cantor Fitzgerald & Co.), a network registered in the United States with ARIN, originates 9 IPv4 prefixes covering 2.3k addresses. By IPv4 address space that makes it the 24,593rd-largest of the 80,743 networks we see originating IPv4, and the 6,127th-largest of 18,754 in the United States. It is seen behind 4 upstream networks, most often AS13335 (Cloudflare, Inc.) and AS16735 (Algar Telecom). None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

9

IPv6 prefixes

0

IPv4 addresses

2.3k

IPv6 /64s

0

Upstream graph

The networks AS19602 is seen behind, one and two hops out, drawn from real AS paths.

AS19602Toward the internet core
Upstream graph for AS19602: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS19602Cantor Fitzgerald…This networkAS3356Lumen (Level 3)AS13335Cloudflare, Inc.AS13789Unitas GlobalAS16735Algar TelecomAS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS1828PacketFabric / Un…AS6762Telecom Italia Sp…

Networks observed one and two hops upstream of AS19602 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

8

adjacent networks

Upstreams
450%
Peers
450%
Downstreams
00%

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

Upstreams of AS19602
NetworkCountryRelationshipPathsVantage pts
AS13335Cloudflare, Inc.USPeer52575
AS16735Algar TelecomBRPeer8176
AS3356Lumen (Level 3)USPeer7171
AS13789Unitas GlobalUSPeer71

Prefixes

The largest blocks AS19602 originates, widest first.

Largest prefixes originated by AS19602
PrefixAddressesVisibility
74.217.171.0/2425676/76
75.98.77.0/2425676/76
148.106.1.0/2425676/76
148.106.2.0/2425676/76
148.106.4.0/2425676/76
148.106.5.0/2425676/76
148.106.12.0/2425676/76
148.106.22.0/2425676/76
148.106.23.0/2425676/76

Routing health

How AS19602'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%9

Propagation

  • Globally propagated90% of full-feed peers or more100.0%9
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 9 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS19602 started or stopped in this period.

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