subnet.im

AS20473The Constant Company, LLC

United StatesRegistryARINTypeContent

As of 12th November 2026, AS20473 (The Constant Company, LLC), a content network registered in the United States with ARIN, originates 1,789 IPv4 prefixes covering 1.5M addresses and 438 IPv6 prefixes. By IPv4 address space that makes it the 358th-largest of the 80,772 networks we see originating IPv4, and the 84th-largest of 18,759 in the United States. It is seen behind 108 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS2914 (NTT America, Inc.), and in front of 1,504 downstream networks. 82% of its announcements have a valid RPKI ROA; 23 are RPKI-invalid. 89% of its routes reach at least 90% of full-feed peers, and 31 prefixes are also originated by another network.

At a glance

IPv4 prefixes

1,789

IPv6 prefixes

438

IPv4 addresses

1.5M

IPv6 /64s

503B

Upstream graph

The networks AS20473 is seen behind, one and two hops out, drawn from real AS paths.

AS20473Toward the internet core
Upstream graph for AS20473: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS20473The Constant Comp…This networkAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3257GTT Communication…AS3491PCCW Global (HK) …AS56662Marcin GondekAS16552Tiggee LLCAS49544i3D.net B.VAS215859Hetzner Cloud - S…AS13030Init7 (Switzerlan…AS398465Rackdog LLCAS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…

Networks observed one and two hops upstream of AS20473 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

3,532

adjacent networks

Upstreams
1083%
Peers
1,92054%
Downstreams
1,50443%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 108.

Upstreams of AS20473
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer91,243142
AS2914NTT America, Inc.USPeer81,423140
AS3491PCCW Global (HK) Ltd.HKPeer55,079142
AS3257GTT Communications Inc.USPeer45,637135
AS56662Marcin GondekPLPeer37,9171
AS174Cogent Communications, LLCUSPeer22,222137
AS4637Telstra International LimitedHKPeer11,273142
AS49544i3D.net B.VNLPeer5,2544
AS18106Viewqwest Pte LtdSGPeer4,9484
AS25091IP-Max SACHPeer4,8925

Prefixes

All 2,227

The largest blocks AS20473 originates, widest first.

Largest prefixes originated by AS20473
PrefixAddressesVisibility
44.33.0.0/1665.5k78/78
108.61.0.0/1816.4k78/78
158.247.192.0/1816.4k78/78
167.179.64.0/1816.4k78/78
45.32.32.0/198.2k78/78
45.32.64.0/198.2k78/78
45.32.96.0/198.2k78/78
45.76.192.0/198.2k78/78
64.176.0.0/198.2k78/78
64.176.32.0/198.2k78/78

Routing health

How AS20473'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

  • Valid81.6%1,817
  • Invalid1.0%23
  • No ROA17.4%387

Propagation

  • Globally propagated90% of full-feed peers or more89.4%1,990
  • Partially propagated40% to 90%2.8%62
  • Seen by few peersUnder 40%7.9%175

Prefix sizes

IPv4 — 1,789 prefixes

IPv6 — 438 prefixes

  • /2934.4B × /642.3%10
  • /318.6B × /640.9%4
  • /324.3B × /644.8%21
  • /332.1B × /643.2%14
  • /36268M × /641.1%5
  • /3867.1M × /6411.9%52
  • /4016.8M × /641.4%6
  • /441M × /640.7%3
  • /46262k × /640.7%3
  • /4865.5k × /6473.1%320

Recent changes

Announcements that started or stopped since 13th Oct 2026.

14,497 announced and 14,211 withdrawn in all; the most recent are shown.

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