subnet.im

AS12200Rackspace Hosting

United StatesRegistryARINTypeContent

As of 24th October 2026, AS12200 (Rackspace Hosting), a content network registered in the United States with ARIN, originates 16 IPv4 prefixes covering 6.9k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 13,278th-largest of the 79,642 networks we see originating IPv4, and the 3,871st-largest of 18,487 in the United States. It is seen behind 47 upstream networks, most often AS6461 (Zayo Bandwidth) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 19 downstream networks. 6% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 82% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

16

IPv6 prefixes

1

IPv4 addresses

6.9k

IPv6 /64s

65.5k

Upstream graph

The networks AS12200 is seen behind, one and two hops out, drawn from real AS paths.

AS12200Toward the internet core
Upstream graph for AS12200: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS12200Rackspace HostingThis networkAS174Cogent Communicat…AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS6461Zayo BandwidthAS6939Hurricane Electri…AS151326DCConnect Communi…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS32590Valve CorporationAS20130Depaul University

Networks observed one and two hops upstream of AS12200 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

273

adjacent networks

Upstreams
4717%
Peers
20776%
Downstreams
197%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 47.

Upstreams of AS12200
NetworkCountryRelationshipPathsVantage pts
AS6461Zayo BandwidthUSPeer9,65072
AS1299Arelion (fka. Telia Carrier)SEPeer8,420128
AS3356Lumen (Level 3)USPeer6,238116
AS174Cogent Communications, LLCUSPeer3,415111
AS6939Hurricane Electric LLCUSPeer1,48418
AS14537Continent 8 LLCUSPeer6924
AS3491PCCW Global (HK) Ltd.HKPeer6879
AS49544i3D.net B.VNLPeer4262
AS13237euNetworks GmbHDEPeer39380
AS35280F5 Networks SARLFRPeer3574

Prefixes

The largest blocks AS12200 originates, widest first.

Largest prefixes originated by AS12200
PrefixAddressesVisibility
146.20.220.0/221k75/76
166.86.0.0/221k75/76
208.95.152.0/221k75/76
199.253.202.0/2351275/76
199.253.204.0/2351276/76
66.70.24.0/2425665/76
81.168.7.0/2425675/76
146.177.20.0/2425674/76
146.177.21.0/2425674/76
146.177.56.0/2425675/76

Routing health

How AS12200'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

  • Valid5.9%1
  • Invalid0.0%0
  • No ROA94.1%16

Propagation

  • Globally propagated90% of full-feed peers or more82.4%14
  • Partially propagated40% to 90%11.8%2
  • Seen by few peersUnder 40%5.9%1

Prefix sizes

IPv4 — 16 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 24th Sept 2026.

No announcement by AS12200 started or stopped in this period.

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