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AS683Argonne National Laboratory

United StatesRegistryARIN

As of 22nd October 2026, AS683 (Argonne National Laboratory), a network registered in the United States with ARIN, originates 24 IPv4 prefixes covering 298k addresses and 10 IPv6 prefixes. By IPv4 address space that makes it the 979th-largest of the 79,655 networks we see originating IPv4, and the 254th-largest of 18,475 in the United States. It is seen behind 2 upstream networks, most often AS293 (ESnet) and AS22335 (Metropolitan Research and Education…). 82% 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

24

IPv6 prefixes

10

IPv4 addresses

298k

IPv6 /64s

1.1B

Upstream graph

The networks AS683 is seen behind, one and two hops out, drawn from real AS paths.

AS683Toward the internet core
Upstream graph for AS683: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS683Argonne National …This networkAS293ESnetAS22335Metropolitan Rese…AS2914NTT America, Inc.AS6939Hurricane Electri…AS11164Internet2 I2PXAS11537Internet2

Networks observed one and two hops upstream of AS683 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS683
NetworkCountryRelationshipPathsVantage pts
AS293ESnetUSPeer2,476141
AS22335Metropolitan Research and Education NetworkUSPeer102

Prefixes

All 34

The largest blocks AS683 originates, widest first.

Largest prefixes originated by AS683
PrefixAddressesVisibility
130.202.0.0/1665.5k77/77
146.137.0.0/1665.5k77/77
146.139.0.0/1665.5k77/77
164.54.0.0/1665.5k77/77
140.221.0.0/1816.4k77/77
140.221.80.0/204.1k77/77
140.221.112.0/204.1k77/77
192.5.176.0/204.1k77/77
140.221.72.0/212k77/77
146.137.252.0/221k77/77

Routing health

How AS683'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

  • Valid82.4%28
  • Invalid0.0%0
  • No ROA17.6%6

Propagation

  • Globally propagated90% of full-feed peers or more100.0%34
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 24 prefixes

IPv6 — 10 prefixes

  • /36268M × /6440.0%4
  • /4016.8M × /6410.0%1
  • /4865.5k × /6450.0%5

Recent changes

Announcements that started or stopped since 22nd Sept 2026.

No announcement by AS683 started or stopped in this period.

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