subnet.im

AS30132ISC F-ROOT AMS1

United StatesRegistryARINTypeContent

As of 27th September 2026, AS30132 (ISC F-ROOT AMS1), a content network registered in the United States with ARIN, originates 4 IPv4 prefixes covering 1k addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 35,811th-largest of the 79,525 networks we see originating IPv4, and the 8,138th-largest of 18,428 in the United States. It is seen behind 33 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 1 downstream network. Every one of its announcements has 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

4

IPv6 prefixes

2

IPv4 addresses

1k

IPv6 /64s

131k

Upstream graph

The networks AS30132 is seen behind, one and two hops out, drawn from real AS paths.

AS30132Toward the internet core
Upstream graph for AS30132: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS30132ISC F-ROOT AMS1This networkAS1299Arelion (fka. Tel…AS3491PCCW Global (HK) …AS6453TATA Communicatio…AS6939Hurricane Electri…AS9002RETN LimitedAS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS8220COLTAS35280F5 Networks SARLAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS51907Kanton Zug

Networks observed one and two hops upstream of AS30132 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

161

adjacent networks

Upstreams
3320%
Peers
12779%
Downstreams
11%

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

Upstreams of AS30132
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer294104
AS1299Arelion (fka. Telia Carrier)SEPeer7626
AS6453TATA Communications (America) IncUSPeer164
AS9002RETN LimitedGBPeer134
AS12859BIT BVNLPeer129
AS13030Init7 (Switzerland) Ltd.CHPeer124
AS3491PCCW Global (HK) Ltd.HKPeer124
AS6667Elisa OyjFIPeer124
AS25091IP-Max SACHPeer83
AS7713PT Telkom Indonesia TbkIDPeer82

Prefixes

The largest blocks AS30132 originates, widest first.

Largest prefixes originated by AS30132
PrefixAddressesVisibility
149.20.5.0/2425681/81
149.20.9.0/2425681/81
149.20.67.0/2425681/81
199.6.1.0/2425681/81
2001:4f8:9::/4865.5k × /6463/64
2001:500:60::/4865.5k × /6464/64

Routing health

How AS30132'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

  • Valid100.0%6
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%6
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 4 prefixes

IPv6 — 2 prefixes

  • /4865.5k × /64100.0%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS30132 started or stopped in this period.

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