subnet.im

AS18600R. Fritz Enterprises Inc.

United StatesRegistryARIN

As of 11th November 2026, AS18600 (R. Fritz Enterprises Inc.), a network registered in the United States with ARIN, originates 3 IPv4 prefixes covering 768 addresses. By IPv4 address space that makes it the 45,671st-largest of the 80,747 networks we see originating IPv4, and the 9,536th-largest of 18,752 in the United States. It is seen behind 1 upstream network, most often AS7018 (AT&T Enterprises, LLC). 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

3

IPv6 prefixes

0

IPv4 addresses

768

IPv6 /64s

0

Upstream graph

The networks AS18600 is seen behind, one and two hops out, drawn from real AS paths.

AS18600Toward the internet core
Upstream graph for AS18600: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS18600R. Fritz Enterpri…This networkAS7018AT&T Enterprises,…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS18600 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS18600
NetworkCountryRelationshipPathsVantage pts
AS7018AT&T Enterprises, LLCUSPeer22876

Prefixes

The largest blocks AS18600 originates, widest first.

Largest prefixes originated by AS18600
PrefixAddressesVisibility
216.9.160.0/2425676/76
216.9.161.0/2425676/76
216.9.165.0/2425676/76

Routing health

How AS18600'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%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 3 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS18600 started or stopped in this period.

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