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

AS20473 · AS-VULTR

The Constant Company LLC

AS20473 is operated by The Constant Company LLC and serves as a major transit provider, registered 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 Japan and the United Kingdom, and smaller footprints in 32 additional countries. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #59 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
September 11, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
1 670 / 638
IPv6 Prefixes (raw / aggregated)
328 / 269
IPv4 Addresses
1 447 680
Largest IPv4 Prefix
/15 (131 072 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇺🇸 United States (1 454 944 IPs), 🇯🇵 Japan (204 960 IPs), 🇬🇧 United Kingdom (149 824 IPs) and 32 more
Prefix Changed
September 12, 2026

Reputation

Reputation
Good — 330 flagged IPs out of 1 447 680 total (0.02%)
Tor Exit Nodes
8 known Tor exit nodes in this network
Open Proxies
10 known open proxies in this network

Connectivity Summary

Upstream Providers
26 upstreams providing transit
Peers
592 networks exchanging traffic without transit
Downstream Customers
674 downstreams buying transit
Unclassified
684 unclassified BGP neighbors
Degree
1 976 unique BGP neighbors
Reach
18 552 networks in customer cone

Upstream Providers (26)

  • AS174 — COGENT (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS137409 — GSLNETWORKS-AS-AP
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS7195 — EDGEUNO
  • AS13335 — CLOUDFLARENET-AS
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS15830 — EQUINIX
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS9498 — BBIL-AP
  • and 16 more

Prefix Lists

IPv4 Prefixes (1 670 total)

  • 45.76.0.0/15 (131 072 addresses (/15 prefix))
  • 45.32.0.0/16 (65 536 addresses (/16 prefix))
  • 44.33.0.0/16 (65 536 addresses (/16 prefix))
  • 155.138.128.0/17 (32 768 addresses (/17 prefix))
  • 64.176.0.0/17 (32 768 addresses (/17 prefix))
  • 95.179.128.0/17 (32 768 addresses (/17 prefix))
  • 139.84.128.0/17 (32 768 addresses (/17 prefix))
  • 144.202.0.0/17 (32 768 addresses (/17 prefix))
  • 149.28.128.0/17 (32 768 addresses (/17 prefix))
  • 152.39.128.0/17 (32 768 addresses (/17 prefix))
  • 136.244.64.0/18 (16 384 addresses (/18 prefix))
  • 108.61.128.0/18 (16 384 addresses (/18 prefix))
  • 45.63.64.0/18 (16 384 addresses (/18 prefix))
  • 216.238.64.0/18 (16 384 addresses (/18 prefix))
  • 192.248.128.0/18 (16 384 addresses (/18 prefix))
  • 167.179.64.0/18 (16 384 addresses (/18 prefix))
  • 64.176.192.0/18 (16 384 addresses (/18 prefix))
  • 158.247.192.0/18 (16 384 addresses (/18 prefix))
  • 64.177.64.0/18 (16 384 addresses (/18 prefix))
  • 207.148.64.0/18 (16 384 addresses (/18 prefix))
  • 149.248.0.0/18 (16 384 addresses (/18 prefix))
  • 207.246.64.0/18 (16 384 addresses (/18 prefix))
  • 149.28.64.0/18 (16 384 addresses (/18 prefix))
  • 65.20.64.0/18 (16 384 addresses (/18 prefix))
  • 66.42.64.0/18 (16 384 addresses (/18 prefix))
  • 78.141.192.0/18 (16 384 addresses (/18 prefix))
  • 140.82.0.0/18 (16 384 addresses (/18 prefix))
  • 216.128.128.0/18 (16 384 addresses (/18 prefix))
  • 139.180.128.0/18 (16 384 addresses (/18 prefix))
  • 104.238.128.0/18 (16 384 addresses (/18 prefix))
  • 108.61.0.0/18 (16 384 addresses (/18 prefix))
  • 134.199.64.0/19 (8 192 addresses (/19 prefix))
  • 70.34.192.0/19 (8 192 addresses (/19 prefix))
  • 136.227.160.0/19 (8 192 addresses (/19 prefix))
  • 202.182.96.0/19 (8 192 addresses (/19 prefix))
  • 108.61.192.0/19 (8 192 addresses (/19 prefix))
  • 209.250.224.0/19 (8 192 addresses (/19 prefix))
  • 108.61.64.0/19 (8 192 addresses (/19 prefix))
  • 137.220.32.0/19 (8 192 addresses (/19 prefix))
  • 107.191.32.0/19 (8 192 addresses (/19 prefix))
  • 209.222.0.0/19 (8 192 addresses (/19 prefix))
  • 104.207.128.0/19 (8 192 addresses (/19 prefix))
  • 104.156.224.0/19 (8 192 addresses (/19 prefix))
  • 96.30.192.0/19 (8 192 addresses (/19 prefix))
  • 139.180.192.0/19 (8 192 addresses (/19 prefix))
  • 141.164.32.0/19 (8 192 addresses (/19 prefix))
  • 136.242.96.0/19 (8 192 addresses (/19 prefix))
  • 66.135.0.0/19 (8 192 addresses (/19 prefix))
  • 66.55.128.0/19 (8 192 addresses (/19 prefix))
  • 208.167.224.0/19 (8 192 addresses (/19 prefix))

IPv6 Prefixes (328 total)

  • 2a11:f900::/29
  • 2a11:f500::/29
  • 2a11:f300::/29
  • 2a11:f100::/29
  • 2a11:ef00::/29
  • 2a12:7240::/29
  • 2a11:ed00::/29
  • 2a10:2500::/29
  • 2a10:1c80::/29
  • 2a0f:3e00::/29
  • 2a0f:13c0::/29
  • 2a0b:64c4::/31
  • 2a0f:f46::/31
  • 2a06:3e87::/32
  • 2a05:2d07::/32
  • 2a0e:9d40::/32
  • 2a0f:f42::/32
  • 2607:7180::/32
  • 2a0f:f45::/32
  • 2a07:a341::/32
  • 2a07:5580::/32
  • 2a06:4c00::/32
  • 2a06:25c0::/32
  • 2a06:1287::/32
  • 2a04:a147::/32
  • 2a04:a142::/32
  • 2a04:30c0::/32
  • 2a12:600::/32
  • 2a03:60c0::/32
  • 2a03:4a81::/32
  • 2a14:7584:8000::/35
  • 2401:c080:1000::/36
  • 2a05:f480:2000::/36
  • 2602:f4fb::/36
  • 2001:19f0:9000::/36
  • 2a0f:6282:4000::/36
  • 2001:19f0:5000::/36
  • 2001:19f0:6000::/36
  • 2a05:f480:1000::/36
  • 2a10:fa80:2000::/36
  • 2602:f6ac::/36
  • 2a05:f480:3000::/37
  • 2001:19f0:b000::/37
  • 2001:19f0:7000::/37
  • 2001:19f0:4000::/37
  • 2001:19f0:1000::/37
  • 2401:c080:3000::/37
  • 2401:c080:2000::/37
  • 2001:19f0:a800::/37
  • 2a05:f480:3800::/38