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AS3573Accenture LLP

United StatesRegistryARIN

As of 29th September 2026, AS3573 (Accenture LLP), a network registered in the United States with ARIN, originates 116 IPv4 prefixes covering 56.6k addresses and 221 IPv6 prefixes. By IPv4 address space that makes it the 4,221st-largest of the 79,607 networks we see originating IPv4, and the 1,525th-largest of 18,442 in the United States. It is seen behind 90 upstream networks, most often AS8220 (COLT) and AS701 (Verizon Business), and in front of 1 downstream network. 16% of its announcements have a valid RPKI ROA; 15 are RPKI-invalid. 94% 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

116

IPv6 prefixes

221

IPv4 addresses

56.6k

IPv6 /64s

21.6B

Upstream graph

The networks AS3573 is seen behind, one and two hops out, drawn from real AS paths.

AS3573Toward the internet core
Upstream graph for AS3573: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS3573Accenture LLPThis networkAS701Verizon BusinessAS3320Deutsche Telekom …AS3356Lumen (Level 3)AS7018AT&T Enterprises,…AS8220COLTAS1299Arelion (fka. Tel…AS13030Init7 (Switzerlan…AS37271Workonline Commun…AS3549Lumen (fka. Globa…AS2914NTT America, Inc.AS15576NTS workspace AG

Networks observed one and two hops upstream of AS3573 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

183

adjacent networks

Upstreams
9049%
Peers
9250%
Downstreams
11%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 90.

Upstreams of AS3573
NetworkCountryRelationshipPathsVantage pts
AS8220COLTGBPeer4,171146
AS701Verizon BusinessUSPeer1,478126
AS3320Deutsche Telekom AGDEPeer1,145147
AS3356Lumen (Level 3)USPeer999147
AS7018AT&T Enterprises, LLCUSPeer827145
AS4637Telstra International LimitedHKPeer770124
AS4826Vocus Connect International BackboneAUPeer697135
AS12552GlobalConnect (IP-Only)SEPeer636147
AS2687AT&T Enterprises, LLCUSPeer539108
AS13237euNetworks GmbHDEPeer52496

Prefixes

All 337

The largest blocks AS3573 originates, widest first.

Largest prefixes originated by AS3573
PrefixAddressesVisibility
63.240.184.0/212k82/82
170.248.24.0/212k82/82
170.248.56.0/212k81/82
170.248.104.0/212k82/82
170.248.112.0/212k82/82
170.252.80.0/212k82/82
170.248.24.0/221k2/82
170.248.28.0/221k80/82
170.248.32.0/221k82/82
170.248.56.0/221k2/82

Routing health

How AS3573'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

  • Valid16.0%54
  • Invalid4.5%15
  • No ROA79.5%268

Propagation

  • Globally propagated90% of full-feed peers or more94.4%318
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%5.6%19

Prefix sizes

IPv4 — 116 prefixes

IPv6 — 221 prefixes

  • /324.3B × /641.4%3
  • /332.1B × /641.8%4
  • /4016.8M × /641.8%4
  • /441M × /641.8%4
  • /47131k × /6450.2%111
  • /4865.5k × /6443.0%95

Recent changes

Announcements that started or stopped since 30th Aug 2026.

9 announced and 145 withdrawn in all; the most recent are shown.

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