$ 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 1.5 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 37 additional countries. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #90 by Reach — Top 100 by customer cone size
  • #57 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
October 10, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
1 857 / 800
IPv6 Prefixes (raw / aggregated)
405 / 343
IPv4 Addresses
1 509 120
Largest IPv4 Prefix
/15 (131 072 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇺🇸 United States (871 984 IPs), 🇯🇵 Japan (126 880 IPs), 🇬🇧 United Kingdom (85 040 IPs) and 37 more
Prefix Changed
October 11, 2026

Reputation

Reputation
Good — 252 flagged IPs out of 1 509 120 total (0.02%)
Tor Exit Nodes
4 known Tor exit nodes in this network
Open Proxies
7 known open proxies in this network

Connectivity Summary

Upstream Providers
25 upstreams providing transit
Peers
586 networks exchanging traffic without transit
Downstream Customers
679 downstreams buying transit
Unclassified
721 unclassified BGP neighbors
Degree
2 011 unique BGP neighbors
Reach
702 networks in customer cone

Upstream Providers (25)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS174 — COGENT-174 (Tier-1 transit)
  • AS7195 — EDGEUNO
  • AS1299 — TWELVE99 (Tier-1 transit)
  • AS13335 — CLOUDFLARENET
  • AS3257 — GTT-BACKBONE (Tier-1 transit)
  • AS15830 — EQUINIX
  • AS2914 — NTT-DATA-2914 (Tier-1 transit)
  • AS9498 — BBIL-AP
  • AS4755 — TATACOMM-AS
  • and 15 more

Prefix Lists

IPv4 Prefixes (1 857 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))
  • 64.176.0.0/17 (32 768 addresses (/17 prefix))
  • 64.177.0.0/17 (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))
  • 155.138.128.0/17 (32 768 addresses (/17 prefix))
  • 45.63.64.0/18 (16 384 addresses (/18 prefix))
  • 64.176.192.0/18 (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))
  • 104.238.128.0/18 (16 384 addresses (/18 prefix))
  • 108.61.0.0/18 (16 384 addresses (/18 prefix))
  • 108.61.128.0/18 (16 384 addresses (/18 prefix))
  • 136.244.64.0/18 (16 384 addresses (/18 prefix))
  • 139.180.128.0/18 (16 384 addresses (/18 prefix))
  • 140.82.0.0/18 (16 384 addresses (/18 prefix))
  • 149.28.64.0/18 (16 384 addresses (/18 prefix))
  • 149.248.0.0/18 (16 384 addresses (/18 prefix))
  • 158.247.192.0/18 (16 384 addresses (/18 prefix))
  • 167.179.64.0/18 (16 384 addresses (/18 prefix))
  • 192.248.128.0/18 (16 384 addresses (/18 prefix))
  • 207.148.64.0/18 (16 384 addresses (/18 prefix))
  • 207.246.64.0/18 (16 384 addresses (/18 prefix))
  • 216.128.128.0/18 (16 384 addresses (/18 prefix))
  • 216.238.64.0/18 (16 384 addresses (/18 prefix))
  • 45.63.0.0/19 (8 192 addresses (/19 prefix))
  • 64.176.160.0/19 (8 192 addresses (/19 prefix))
  • 64.237.32.0/19 (8 192 addresses (/19 prefix))
  • 66.42.32.0/19 (8 192 addresses (/19 prefix))
  • 66.55.128.0/19 (8 192 addresses (/19 prefix))
  • 66.135.0.0/19 (8 192 addresses (/19 prefix))
  • 70.34.192.0/19 (8 192 addresses (/19 prefix))
  • 96.30.192.0/19 (8 192 addresses (/19 prefix))
  • 104.156.224.0/19 (8 192 addresses (/19 prefix))
  • 104.207.128.0/19 (8 192 addresses (/19 prefix))
  • 107.191.32.0/19 (8 192 addresses (/19 prefix))
  • 108.61.64.0/19 (8 192 addresses (/19 prefix))
  • 108.61.192.0/19 (8 192 addresses (/19 prefix))
  • 134.199.64.0/19 (8 192 addresses (/19 prefix))
  • 136.227.160.0/19 (8 192 addresses (/19 prefix))
  • 136.242.96.0/19 (8 192 addresses (/19 prefix))
  • 137.220.32.0/19 (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))

IPv6 Prefixes (405 total)

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