subnet.im

AS401152Ace Data Centers II, L.L.C.

United StatesRegistryARIN

As of 11th November 2026, AS401152 (Ace Data Centers II, L.L.C.), a network registered in the United States with ARIN, originates 353 IPv4 prefixes covering 197k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 1,398th-largest of the 80,747 networks we see originating IPv4, and the 403rd-largest of 18,752 in the United States. It is seen behind 2 upstream networks, most often AS11798 (Ace Data Centers, Inc.) and AS6461 (Zayo Bandwidth). 81% of its announcements have a valid RPKI ROA; 52 are RPKI-invalid. 70% of its routes reach at least 90% of full-feed peers, and 45 prefixes are also originated by another network.

At a glance

IPv4 prefixes

353

IPv6 prefixes

2

IPv4 addresses

197k

IPv6 /64s

269M

Upstream graph

The networks AS401152 is seen behind, one and two hops out, drawn from real AS paths.

AS401152Toward the internet core
Upstream graph for AS401152: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS401152Ace Data Centers …This networkAS6461Zayo BandwidthAS11798Ace Data Centers,…AS2914NTT America, Inc.AS32590Valve CorporationAS174Cogent Communicat…

Networks observed one and two hops upstream of AS401152 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 AS401152
NetworkCountryRelationshipPathsVantage pts
AS11798Ace Data Centers, Inc.USPeer20,605138
AS6461Zayo BandwidthUSPeer7676

Prefixes

All 355

The largest blocks AS401152 originates, widest first.

Largest prefixes originated by AS401152
PrefixAddressesVisibility
48.102.0.0/1816.4k20/76
48.102.0.0/204.1k55/76
48.102.16.0/204.1k55/76
48.102.32.0/204.1k55/76
48.102.48.0/204.1k55/76
48.102.128.0/204.1k20/76
48.102.144.0/204.1k20/76
152.234.192.0/204.1k20/76
48.102.128.0/212k55/76
48.102.136.0/212k55/76

Routing health

How AS401152'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

  • Valid80.8%287
  • Invalid14.6%52
  • No ROA4.5%16

Propagation

  • Globally propagated90% of full-feed peers or more69.6%247
  • Partially propagated40% to 90%5.1%18
  • Seen by few peersUnder 40%25.4%90

Prefix sizes

IPv4 — 353 prefixes

IPv6 — 2 prefixes

  • /36268M × /6450.0%1
  • /4865.5k × /6450.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

820 announced and 681 withdrawn in all; the most recent are shown.

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