$ query “AS20473” --type=asn → 1 result(s)

AS20473 · AS-VULTR

The Constant Company LLC

AS20473 is owned by The Constant Company LLC and is a major transit provider, based in the United States since 2001. The system announces an impressive 1.4 million IPv4 addresses, including a /15, and supports IPv6. Its primary geographic footprint is in the United States, with additional presence in the Netherlands and the United Kingdom, and smaller footprints in 30 additional countries. This AS has recently updated its prefix announcements.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #75 by Degree — Top 100 by unique BGP neighbor count

Basic Information

Country
🇺🇸 United States
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
May 11, 2001
Last Changed
March 04, 2026
Last Seen
June 22, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
1 613 / 587
IPv6 Prefixes (raw / aggregated)
391 / 336
IPv4 Addresses
1 420 032
Largest IPv4 Prefix
/15 (131 072 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇺🇸 United States (1 418 496 IPs), 🇳🇱 Netherlands (162 192 IPs), 🇬🇧 United Kingdom (152 992 IPs) and 30 more
Prefix Changed
June 23, 2026

Reputation

Reputation
Good — 188 flagged IPs out of 1 420 032 total (0.01%)
Tor Exit Nodes
4 known Tor exit nodes in this network
Open Proxies
14 known open proxies in this network

Connectivity Summary

Upstream Providers
20 upstreams providing transit
Peers
577 networks exchanging traffic without transit
Downstream Customers
631 downstreams buying transit
Unclassified
561 unclassified BGP neighbors
Degree
1 789 unique BGP neighbors
Reach
30 492 networks in customer cone

Upstream Providers (20)

  • AS174 — COGENT (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS7195 — EDGEUNO
  • AS13335 — CLOUDFLARENET-AS
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS15830 — EQUINIX
  • AS9498 — BBIL-AP
  • AS4755 — TATACOMM-AS
  • and 10 more

Prefix Lists

IPv4 Prefixes (1 613 total)

  • 45.76.0.0/15 (131 072 addresses (/15 prefix))
  • 44.33.0.0/16 (65 536 addresses (/16 prefix))
  • 45.32.0.0/16 (65 536 addresses (/16 prefix))
  • 149.28.128.0/17 (32 768 addresses (/17 prefix))
  • 139.84.128.0/17 (32 768 addresses (/17 prefix))
  • 95.179.128.0/17 (32 768 addresses (/17 prefix))
  • 64.176.0.0/17 (32 768 addresses (/17 prefix))
  • 144.202.0.0/17 (32 768 addresses (/17 prefix))
  • 108.61.128.0/17 (32 768 addresses (/17 prefix))
  • 155.138.128.0/17 (32 768 addresses (/17 prefix))
  • 152.39.128.0/17 (32 768 addresses (/17 prefix))
  • 158.247.192.0/18 (16 384 addresses (/18 prefix))
  • 216.238.64.0/18 (16 384 addresses (/18 prefix))
  • 149.248.0.0/18 (16 384 addresses (/18 prefix))
  • 66.42.64.0/18 (16 384 addresses (/18 prefix))
  • 167.179.64.0/18 (16 384 addresses (/18 prefix))
  • 78.141.192.0/18 (16 384 addresses (/18 prefix))
  • 207.246.64.0/18 (16 384 addresses (/18 prefix))
  • 207.148.64.0/18 (16 384 addresses (/18 prefix))
  • 108.61.0.0/18 (16 384 addresses (/18 prefix))
  • 149.28.64.0/18 (16 384 addresses (/18 prefix))
  • 136.244.64.0/18 (16 384 addresses (/18 prefix))
  • 45.63.64.0/18 (16 384 addresses (/18 prefix))
  • 104.238.128.0/18 (16 384 addresses (/18 prefix))
  • 64.176.192.0/18 (16 384 addresses (/18 prefix))
  • 140.82.0.0/18 (16 384 addresses (/18 prefix))
  • 65.20.64.0/18 (16 384 addresses (/18 prefix))
  • 139.180.128.0/18 (16 384 addresses (/18 prefix))
  • 192.248.128.0/18 (16 384 addresses (/18 prefix))
  • 134.199.64.0/19 (8 192 addresses (/19 prefix))
  • 96.30.192.0/19 (8 192 addresses (/19 prefix))
  • 66.55.128.0/19 (8 192 addresses (/19 prefix))
  • 199.247.0.0/19 (8 192 addresses (/19 prefix))
  • 139.180.192.0/19 (8 192 addresses (/19 prefix))
  • 66.42.32.0/19 (8 192 addresses (/19 prefix))
  • 70.34.192.0/19 (8 192 addresses (/19 prefix))
  • 64.237.32.0/19 (8 192 addresses (/19 prefix))
  • 64.177.96.0/19 (8 192 addresses (/19 prefix))
  • 202.182.96.0/19 (8 192 addresses (/19 prefix))
  • 141.164.32.0/19 (8 192 addresses (/19 prefix))
  • 66.135.0.0/19 (8 192 addresses (/19 prefix))
  • 64.176.160.0/19 (8 192 addresses (/19 prefix))
  • 137.220.32.0/19 (8 192 addresses (/19 prefix))
  • 136.242.96.0/19 (8 192 addresses (/19 prefix))
  • 198.13.32.0/19 (8 192 addresses (/19 prefix))
  • 207.148.0.0/19 (8 192 addresses (/19 prefix))
  • 45.63.0.0/19 (8 192 addresses (/19 prefix))
  • 136.227.160.0/19 (8 192 addresses (/19 prefix))
  • 104.207.128.0/19 (8 192 addresses (/19 prefix))
  • 149.28.32.0/19 (8 192 addresses (/19 prefix))

IPv6 Prefixes (391 total)

  • 2a10:2500::/29
  • 2a0f:13c0::/29
  • 2a0f:3e00::/29
  • 2a10:1c80::/29
  • 2a12:7240::/29
  • 2a11:ed00::/29
  • 2a11:ef00::/29
  • 2a11:f100::/29
  • 2a11:f300::/29
  • 2a11:f500::/29
  • 2a11:f900::/29
  • 2a0b:64c4::/31
  • 2a0f:f46::/31
  • 2a03:60c0::/32
  • 2607:7180::/32
  • 2a0e:15c6::/32
  • 2a05:2d07::/32
  • 2a0e:9d40::/32
  • 2a0f:f42::/32
  • 2a07:a341::/32
  • 2a07:5580::/32
  • 2a04:a147::/32
  • 2a04:30c0::/32
  • 2a06:1287::/32
  • 2a06:25c0::/32
  • 2a06:3e87::/32
  • 2a06:4c00::/32
  • 2a13:d47::/32
  • 2a04:a142::/32
  • 2a03:4a81::/32
  • 2a14:7584:8000::/35
  • 2001:19f0:5000::/36
  • 2a05:f480:2000::/36
  • 2001:19f0:6000::/36
  • 2401:c080:1000::/36
  • 2001:19f0:9000::/36
  • 2602:f4fb::/36
  • 2a05:f480:1000::/36
  • 2602:f6ac::/36
  • 2a05:f480:3000::/37
  • 2401:c080:3000::/37
  • 2001:19f0:7000::/37
  • 2001:19f0:4000::/37
  • 2001:19f0:1000::/37
  • 2401:c080:2000::/37
  • 2001:19f0:a800::/37
  • 2001:19f0:b000::/37
  • 2401:c080:3800::/38
  • 2a05:f480:3800::/38
  • 2001:19f0::/38