subnet.im

AS399628Internet Measurement Research

United StatesRegistryARIN

As of 26th September 2026, AS399628 (Internet Measurement Research), a network registered in the United States with ARIN, originates 7 IPv4 prefixes covering 1.8k addresses and 7 IPv6 prefixes. By IPv4 address space that makes it the 29,815th-largest of the 79,516 networks we see originating IPv4, and the 6,813th-largest of 18,424 in the United States. It is seen behind 1 upstream network, most often AS6939 (Hurricane Electric LLC). 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

7

IPv6 prefixes

7

IPv4 addresses

1.8k

IPv6 /64s

459k

Upstream graph

The networks AS399628 is seen behind, one and two hops out, drawn from real AS paths.

AS399628Toward the internet core
Upstream graph for AS399628: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS399628Internet Measurem…This networkAS6939Hurricane Electri…AS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS399628 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 AS399628
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer1,006144

Prefixes

The largest blocks AS399628 originates, widest first.

Largest prefixes originated by AS399628
PrefixAddressesVisibility
64.94.153.0/2425681/81
64.94.156.0/2425681/81
64.94.159.0/2425681/81
64.95.9.0/2425681/81
64.95.14.0/2425681/81
209.188.108.0/2425681/81
209.237.154.0/2425681/81
2620:96:a000::/4865.5k × /6462/64
2620:96:a001::/4865.5k × /6462/64
2620:96:a002::/4865.5k × /6463/64

Routing health

How AS399628'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%14
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%14
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 7 prefixes

IPv6 — 7 prefixes

  • /4865.5k × /64100.0%7

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS399628 started or stopped in this period.

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