subnet.im

AS399275Solid Systems LLC

United StatesRegistryARIN

As of 26th September 2026, AS399275 (Solid Systems LLC), a network registered in the United States with ARIN, originates 38 IPv4 prefixes covering 9.7k addresses and 15 IPv6 prefixes. By IPv4 address space that makes it the 10,679th-largest of the 79,516 networks we see originating IPv4, and the 3,231st-largest of 18,424 in the United States. It is seen behind 11 upstream networks, most often AS174 (Cogent Communications, LLC) and AS29802 (HIVELOCITY, Inc.). 77% 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

38

IPv6 prefixes

15

IPv4 addresses

9.7k

IPv6 /64s

983k

Upstream graph

The networks AS399275 is seen behind, one and two hops out, drawn from real AS paths.

AS399275Toward the internet core
Upstream graph for AS399275: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS399275Solid Systems LLCThis networkAS174Cogent Communicat…AS1100Nuday Networks In…AS3170VeloxServ Communi…AS29802HIVELOCITY, Inc.AS395584Data ManagementAS151326DCConnect Communi…AS6461Zayo BandwidthAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3257GTT Communication…AS6939Hurricane Electri…AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS399275 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
1150%
Peers
1150%
Downstreams
00%

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

Upstreams of AS399275
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer1,852139
AS29802HIVELOCITY, Inc.USPeer452145
AS395584Data ManagementUSPeer307145
AS3170VeloxServ Communications LtdGBPeer288144
AS1100Nuday Networks Inc.CAPeer223143
AS32097WholeSale Internet, Inc.USPeer222142
AS61272UAB BacloudLTPeer145145
AS394896Ace Host, LLCUSPeer145145
AS36352HostPapaUSPeer143143
AS23033Wowrack.comUSPeer143143

Prefixes

All 53

The largest blocks AS399275 originates, widest first.

Largest prefixes originated by AS399275
PrefixAddressesVisibility
38.70.138.0/2425680/81
38.111.111.0/2425680/81
69.73.151.0/2425680/81
74.2.186.0/2425680/81
74.2.187.0/2425680/81
79.182.17.0/2425680/81
104.245.234.0/2425680/81
130.12.168.0/2425681/81
130.12.171.0/2425681/81
130.117.79.0/2425680/81

Routing health

How AS399275'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

  • Valid77.4%41
  • Invalid0.0%0
  • No ROA22.6%12

Propagation

  • Globally propagated90% of full-feed peers or more100.0%53
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 38 prefixes

IPv6 — 15 prefixes

  • /4865.5k × /64100.0%15

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.