subnet.im

AS400304Redoubt Networks (Synteq / Crunchbits)

United StatesRegistryARINTypeContent

As of 26th September 2026, AS400304 (Redoubt Networks (Synteq / Crunchbits)), a content network registered in the United States with ARIN, originates 26 IPv4 prefixes covering 9.2k addresses and 10 IPv6 prefixes. By IPv4 address space that makes it the 10,999th-largest of the 79,516 networks we see originating IPv4, and the 3,308th-largest of 18,424 in the United States. It is seen behind 12 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS3257 (GTT Communications Inc.), and in front of 12 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

26

IPv6 prefixes

10

IPv4 addresses

9.2k

IPv6 /64s

84.2M

Upstream graph

The networks AS400304 is seen behind, one and two hops out, drawn from real AS paths.

AS400304Toward the internet core
Upstream graph for AS400304: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS400304Redoubt Networks …This networkAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3257GTT Communication…AS6939Hurricane Electri…AS18106Viewqwest Pte LtdAS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS3130RGnet OUAS49544i3D.net B.VAS6667Elisa OyjAS398465Rackdog LLCAS20130Depaul University

Networks observed one and two hops upstream of AS400304 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

65

adjacent networks

Upstreams
1218%
Peers
4163%
Downstreams
1218%

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

Upstreams of AS400304
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer2,691126
AS3257GTT Communications Inc.USPeer1,61376
AS6939Hurricane Electric LLCUSPeer21315
AS2914NTT America, Inc.USPeer6464
AS18106Viewqwest Pte LtdSGPeer462
AS49544i3D.net B.VNLPeer452
AS9002RETN LimitedGBPeer372
AS58511Swoop (Anycast Global Backbone)AUPeer372
AS24482SG.GSSGPeer362
AS3130RGnet OUEEPeer251

Prefixes

All 36

The largest blocks AS400304 originates, widest first.

Largest prefixes originated by AS400304
PrefixAddressesVisibility
104.36.84.0/221k81/81
104.204.64.0/221k80/81
216.126.232.0/221k81/81
145.79.224.0/2351281/81
23.147.152.0/2425681/81
66.23.193.0/2425681/81
66.23.198.0/2425681/81
66.23.199.0/2425681/81
86.107.101.0/2425681/81
104.36.82.0/2425680/81

Routing health

How AS400304'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%36
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%36
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 26 prefixes

IPv6 — 10 prefixes

  • /4016.8M × /6450.0%5
  • /4865.5k × /6450.0%5

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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