subnet.im

AS20029H5 Data Centers

United StatesRegistryARIN

As of 12th November 2026, AS20029 (H5 Data Centers), a network registered in the United States with ARIN, originates 13 IPv4 prefixes covering 3.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 19,864th-largest of the 80,794 networks we see originating IPv4, and the 5,438th-largest of 18,768 in the United States. It is seen behind 5 upstream networks, most often AS6461 (Zayo Bandwidth) and AS3549 (Lumen (fka. Global Crossing)), and in front of 2 downstream networks. None of its announcements have a valid RPKI ROA. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

13

IPv6 prefixes

1

IPv4 addresses

3.3k

IPv6 /64s

268M

Upstream graph

The networks AS20029 is seen behind, one and two hops out, drawn from real AS paths.

AS20029Toward the internet core
Upstream graph for AS20029: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS20029H5 Data CentersThis networkAS3356Lumen (Level 3)AS3549Lumen (fka. Globa…AS6461Zayo BandwidthAS6939Hurricane Electri…AS8002Stealth Communica…AS4775Globe TelecomsAS2914NTT America, Inc.AS32590Valve CorporationAS20130Depaul UniversityAS132337AxclusiveAS174Cogent Communicat…

Networks observed one and two hops upstream of AS20029 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

14

adjacent networks

Upstreams
536%
Peers
750%
Downstreams
214%

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

Upstreams of AS20029
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer871141
AS3549Lumen (fka. Global Crossing)USPeer10312
AS8002Stealth Communications Services, LLCUSPeer7878
AS6939Hurricane Electric LLCUSPeer4747
AS3356Lumen (Level 3)USPeer3939

Prefixes

The largest blocks AS20029 originates, widest first.

Largest prefixes originated by AS20029
PrefixAddressesVisibility
64.129.78.0/2425678/78
69.67.152.0/2425678/78
69.67.154.0/2425678/78
69.166.104.0/2425678/78
69.166.106.0/2425678/78
69.166.107.0/2425678/78
173.205.216.0/2425678/78
173.205.219.0/2425678/78
207.188.8.0/2425678/78
207.188.9.0/2425678/78

Routing health

How AS20029'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%14

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 — 13 prefixes

IPv6 — 1 prefixes

  • /36268M × /64100.0%1

Recent changes

Announcements that started or stopped since 13th Oct 2026.

No announcement by AS20029 started or stopped in this period.

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