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AS1225NTT America, Inc.

United StatesRegistryARIN

As of 27th September 2026, AS1225 (NTT America, Inc.), a network registered in the United States with ARIN, originates 2 IPv4 prefixes covering 1.3k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 33,376th-largest of the 79,536 networks we see originating IPv4, and the 7,579th-largest of 18,430 in the United States. It is seen behind 1 upstream network, most often AS2914 (NTT America, Inc.). 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

2

IPv6 prefixes

1

IPv4 addresses

1.3k

IPv6 /64s

65.5k

Upstream graph

The networks AS1225 is seen behind, one and two hops out, drawn from real AS paths.

AS1225Toward the internet core
Upstream graph for AS1225: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS1225NTT America, Inc.This networkAS2914NTT America, Inc.AS3130RGnet OUAS49544i3D.net B.V

Networks observed one and two hops upstream of AS1225 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 AS1225
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer226145

Prefixes

The largest blocks AS1225 originates, widest first.

Largest prefixes originated by AS1225
PrefixAddressesVisibility
204.2.140.0/221k81/82
192.102.248.0/2425681/82
2001:418:1439::/4865.5k × /6464/65

Routing health

How AS1225'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%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS1225 started or stopped in this period.

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