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AS400072THUNDERBOX INC

United StatesRegistryARIN

As of 12th November 2026, AS400072 (THUNDERBOX INC), a network registered in the United States with ARIN, originates 22 IPv4 prefixes covering 67.6k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 3,318th-largest of the 80,772 networks we see originating IPv4, and the 1,118th-largest of 18,759 in the United States. It is seen behind 1 upstream network, most often AS7018 (AT&T Enterprises, LLC). 87% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. 91% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

22

IPv6 prefixes

1

IPv4 addresses

67.6k

IPv6 /64s

1.1B

Upstream graph

The networks AS400072 is seen behind, one and two hops out, drawn from real AS paths.

AS400072Toward the internet core
Upstream graph for AS400072: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS400072THUNDERBOX INCThis networkAS7018AT&T Enterprises,…AS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS400072 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 AS400072
NetworkCountryRelationshipPathsVantage pts
AS7018AT&T Enterprises, LLCUSPeer1,624140

Prefixes

The largest blocks AS400072 originates, widest first.

Largest prefixes originated by AS400072
PrefixAddressesVisibility
207.228.0.0/1816.4k78/78
72.22.32.0/198.2k78/78
107.180.160.0/198.2k78/78
62.164.224.0/204.1k78/78
62.164.240.0/204.1k78/78
207.135.192.0/204.1k78/78
212.32.96.0/204.1k1/78
212.32.112.0/204.1k1/78
74.122.56.0/212k78/78
107.180.128.0/212k78/78

Routing health

How AS400072'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

  • Valid87.0%20
  • Invalid8.7%2
  • No ROA4.3%1

Propagation

  • Globally propagated90% of full-feed peers or more91.3%21
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%8.7%2

Prefix sizes

IPv4 — 22 prefixes

IPv6 — 1 prefixes

  • /341.1B × /64100.0%1

Recent changes

Announcements that started or stopped since 13th Oct 2026.

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