$ 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, 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 the Netherlands and the United Kingdom, and smaller footprints in 30 additional countries. Prefix announcements for this AS were recently updated.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #79 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
May 15, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
1 650 / 629
IPv6 Prefixes (raw / aggregated)
405 / 351
IPv4 Addresses
1 439 232
Largest IPv4 Prefix
/15 (131 072 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇺🇸 United States (1 448 448 IPs), 🇳🇱 Netherlands (162 704 IPs), 🇬🇧 United Kingdom (155 552 IPs) and 30 more
Prefix Changed
May 16, 2026

Reputation

Reputation
Good — 135 flagged IPs out of 1 439 232 total (0.01%)
Tor Exit Nodes
3 known Tor exit nodes in this network
Open Proxies
21 known open proxies in this network

Connectivity Summary

Upstream Providers
19 upstreams providing transit
Peers
566 networks exchanging traffic without transit
Downstream Customers
613 downstreams buying transit
Unclassified
533 unclassified BGP neighbors
Degree
1 731 unique BGP neighbors
Reach
29 425 networks in customer cone

Upstream Providers (19)

  • 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 9 more

Prefix Lists

IPv4 Prefixes (1 650 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))
  • 95.179.128.0/17 (32 768 addresses (/17 prefix))
  • 139.84.128.0/17 (32 768 addresses (/17 prefix))
  • 108.61.128.0/17 (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))
  • 155.138.128.0/17 (32 768 addresses (/17 prefix))
  • 152.39.128.0/17 (32 768 addresses (/17 prefix))
  • 64.176.0.0/17 (32 768 addresses (/17 prefix))
  • 108.61.0.0/18 (16 384 addresses (/18 prefix))
  • 78.141.192.0/18 (16 384 addresses (/18 prefix))
  • 136.244.64.0/18 (16 384 addresses (/18 prefix))
  • 140.82.0.0/18 (16 384 addresses (/18 prefix))
  • 134.202.192.0/18 (16 384 addresses (/18 prefix))
  • 192.248.128.0/18 (16 384 addresses (/18 prefix))
  • 216.238.64.0/18 (16 384 addresses (/18 prefix))
  • 139.180.128.0/18 (16 384 addresses (/18 prefix))
  • 149.28.64.0/18 (16 384 addresses (/18 prefix))
  • 66.42.64.0/18 (16 384 addresses (/18 prefix))
  • 149.248.0.0/18 (16 384 addresses (/18 prefix))
  • 65.20.64.0/18 (16 384 addresses (/18 prefix))
  • 158.247.192.0/18 (16 384 addresses (/18 prefix))
  • 64.176.192.0/18 (16 384 addresses (/18 prefix))
  • 45.63.64.0/18 (16 384 addresses (/18 prefix))
  • 207.246.64.0/18 (16 384 addresses (/18 prefix))
  • 167.179.64.0/18 (16 384 addresses (/18 prefix))
  • 104.238.128.0/18 (16 384 addresses (/18 prefix))
  • 207.148.64.0/18 (16 384 addresses (/18 prefix))
  • 162.43.224.0/19 (8 192 addresses (/19 prefix))
  • 108.61.64.0/19 (8 192 addresses (/19 prefix))
  • 216.155.128.0/19 (8 192 addresses (/19 prefix))
  • 70.34.192.0/19 (8 192 addresses (/19 prefix))
  • 45.63.0.0/19 (8 192 addresses (/19 prefix))
  • 66.42.32.0/19 (8 192 addresses (/19 prefix))
  • 208.167.224.0/19 (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))
  • 202.182.96.0/19 (8 192 addresses (/19 prefix))
  • 199.247.0.0/19 (8 192 addresses (/19 prefix))
  • 149.28.32.0/19 (8 192 addresses (/19 prefix))
  • 107.191.32.0/19 (8 192 addresses (/19 prefix))
  • 198.13.32.0/19 (8 192 addresses (/19 prefix))
  • 104.156.224.0/19 (8 192 addresses (/19 prefix))
  • 207.148.0.0/19 (8 192 addresses (/19 prefix))
  • 64.237.32.0/19 (8 192 addresses (/19 prefix))
  • 209.250.224.0/19 (8 192 addresses (/19 prefix))
  • 66.55.128.0/19 (8 192 addresses (/19 prefix))
  • 222.167.96.0/19 (8 192 addresses (/19 prefix))

IPv6 Prefixes (405 total)

  • 2a12:7240::/29
  • 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
  • 2a0b:64c4::/31
  • 2a07:5580::/32
  • 2a06:25c0::/32
  • 2607:7180::/32
  • 2a03:4a81::/32
  • 2a03:60c0::/32
  • 2a04:30c0::/32
  • 2a04:a142::/32
  • 2a04:a147::/32
  • 2a05:2d07::/32
  • 2a06:1287::/32
  • 2a06:3e87::/32
  • 2a06:4c00::/32
  • 2a07:a341::/32
  • 2a0e:9d40::/32
  • 2a0f:f42::/32
  • 2a14:7584:8000::/35
  • 2001:19f0:5000::/36
  • 2401:c080:1000::/36
  • 2001:19f0:9000::/36
  • 2602:f6ac::/36
  • 2001:19f0:6000::/36
  • 2a05:f480:1000::/36
  • 2a05:f480:2000::/36
  • 2a05:f480:3000::/37
  • 2001:19f0:7000::/37
  • 2401:c080:3000::/37
  • 2001:19f0:1000::/37
  • 2001:19f0:4000::/37
  • 2001:19f0:b000::/37
  • 2001:19f0:a800::/37
  • 2401:c080:2000::/37
  • 2a05:f480:3800::/38
  • 2001:19f0::/38
  • 2001:19f0:8800::/38
  • 2001:19f0:c000::/38
  • 2401:c080:3800::/38
  • 2001:19f0:b800::/38
  • 2001:19f0:c800::/38