subnet.im

AS19740Sudjam, LLC

United StatesRegistryARIN

As of 26th September 2026, AS19740 (Sudjam, LLC), a network registered in the United States with ARIN, originates 90 IPv4 prefixes covering 38.7k addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 4,997th-largest of the 79,516 networks we see originating IPv4, and the 1,731st-largest of 18,424 in the United States. It is seen behind 7 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS174 (Cogent Communications, LLC), and in front of 4 downstream networks. 71% 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

90

IPv6 prefixes

9

IPv4 addresses

38.7k

IPv6 /64s

4.4B

Upstream graph

The networks AS19740 is seen behind, one and two hops out, drawn from real AS paths.

AS19740Toward the internet core
Upstream graph for AS19740: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS19740Sudjam, LLCThis networkAS174Cogent Communicat…AS3257GTT Communication…AS6939Hurricane Electri…AS25091IP-Max SAAS49544i3D.net B.VAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS6667Elisa OyjAS398465Rackdog LLCAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS8298IPng Networks GmbH

Networks observed one and two hops upstream of AS19740 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

33

adjacent networks

Upstreams
721%
Peers
2267%
Downstreams
412%

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

Upstreams of AS19740
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer29,020134
AS174Cogent Communications, LLCUSPeer11,420139
AS3257GTT Communications Inc.USPeer385100
AS25091IP-Max SACHPeer914
AS49544i3D.net B.VNLPeer892
AS35280F5 Networks SARLFRPeer791
AS137409GSL Networks Pty LTDAUPeer751

Prefixes

All 99

The largest blocks AS19740 originates, widest first.

Largest prefixes originated by AS19740
PrefixAddressesVisibility
154.7.144.0/212k81/81
154.9.72.0/212k81/81
172.84.64.0/212k81/81
199.230.104.0/212k81/81
204.8.136.0/212k81/81
64.234.236.0/221k81/81
66.249.132.0/221k81/81
172.84.72.0/221k81/81
172.84.84.0/221k81/81
172.84.88.0/221k81/81

Routing health

How AS19740'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

  • Valid70.7%70
  • Invalid0.0%0
  • No ROA29.3%29

Propagation

  • Globally propagated90% of full-feed peers or more100.0%99
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 90 prefixes

IPv6 — 9 prefixes

  • /324.3B × /6411.1%1
  • /4016.8M × /6466.7%6
  • /4865.5k × /6422.2%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS19740 started or stopped in this period.

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