subnet.im

AS397270NetInformatik Inc.

United StatesRegistryARIN

As of 26th September 2026, AS397270 (NetInformatik Inc.), a network registered in the United States with ARIN, originates 12 IPv4 prefixes covering 5.4k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 15,036th-largest of the 79,516 networks we see originating IPv4, and the 4,270th-largest of 18,424 in the United States. It is seen behind 2 upstream networks, most often AS11878 (tzulo, inc.) and AS6939 (Hurricane Electric LLC), and in front of 5 downstream networks. Every one of its announcements has 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

12

IPv6 prefixes

6

IPv4 addresses

5.4k

IPv6 /64s

101M

Upstream graph

The networks AS397270 is seen behind, one and two hops out, drawn from real AS paths.

AS397270Toward the internet core
Upstream graph for AS397270: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS397270NetInformatik Inc.This networkAS6939Hurricane Electri…AS11878tzulo, inc.AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS6461Zayo BandwidthAS36236NetActuate, Inc

Networks observed one and two hops upstream of AS397270 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

22

adjacent networks

Upstreams
29%
Peers
1568%
Downstreams
523%

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

Upstreams of AS397270
NetworkCountryRelationshipPathsVantage pts
AS11878tzulo, inc.USPeer2,192145
AS6939Hurricane Electric LLCUSPeer264144

Prefixes

The largest blocks AS397270 originates, widest first.

Largest prefixes originated by AS397270
PrefixAddressesVisibility
64.112.32.0/221k81/81
128.254.172.0/221k81/81
158.51.96.0/2351281/81
208.69.100.0/2351281/81
208.86.32.0/2351281/81
23.148.248.0/2425681/81
23.160.192.0/2425681/81
23.160.193.0/2425681/81
23.160.194.0/2425681/81
23.160.195.0/2425681/81

Routing health

How AS397270'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

  • Valid100.0%18
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%18
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 12 prefixes

IPv6 — 6 prefixes

  • /4016.8M × /64100.0%6

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS397270 started or stopped in this period.

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