$ query “AS46887” --type=asn → 1 result(s)

AS46887 · ZAYO-CCF-AS46887

Zayo Bandwidth

AS46887 is operated by Zayo Bandwidth and serves as a major transit provider, based in the United States since 2009. The system announces a solid 863 232 IPv4 addresses, including a /16, and supports IPv6. Most of its address space is geolocated to the United States, with additional presence in Canada and Guyana, and smaller footprints in 2 additional countries. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • #60 by Reach — Top 100 by customer cone size

Basic Information

Country
🇺🇸 United States
Category
Hosting
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Registered
April 13, 2009
Last Changed
October 01, 2026
Last Seen
October 21, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
802 / 175
IPv6 Prefixes (raw / aggregated)
257 / 11
IPv4 Addresses
863 232
Largest IPv4 Prefix
/16 (65 536 addresses)
Largest IPv6 Prefix
/32
Geolocated Countries
🇺🇸 United States (862 544 IPs), 🇨🇦 Canada (608 IPs), 🇬🇾 Guyana (32 IPs) and 2 more
Prefix Changed
October 21, 2026

Reputation

Reputation
Good — 3 flagged IPs out of 863 232 total (0.00%)

Connectivity Summary

Upstream Providers
2 upstreams providing transit
Peers
4 networks exchanging traffic without transit
Downstream Customers
1 028 downstreams buying transit
Unclassified
34 unclassified BGP neighbors
Degree
1 068 unique BGP neighbors
Reach
1 201 networks in customer cone

Upstream Providers (2)

  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS1299 — TWELVE99 (Tier-1 transit)

Prefix Lists

IPv4 Prefixes (802 total)

  • 9.179.0.0/16 (65 536 addresses (/16 prefix))
  • 9.191.0.0/16 (65 536 addresses (/16 prefix))
  • 131.239.0.0/16 (65 536 addresses (/16 prefix))
  • 138.123.0.0/16 (65 536 addresses (/16 prefix))
  • 144.121.0.0/16 (65 536 addresses (/16 prefix))
  • 149.70.0.0/16 (65 536 addresses (/16 prefix))
  • 160.72.0.0/16 (65 536 addresses (/16 prefix))
  • 165.158.0.0/16 (65 536 addresses (/16 prefix))
  • 158.59.128.0/17 (32 768 addresses (/17 prefix))
  • 209.160.128.0/17 (32 768 addresses (/17 prefix))
  • 64.72.64.0/19 (8 192 addresses (/19 prefix))
  • 67.208.160.0/19 (8 192 addresses (/19 prefix))
  • 69.195.32.0/19 (8 192 addresses (/19 prefix))
  • 72.22.160.0/19 (8 192 addresses (/19 prefix))
  • 76.8.64.0/19 (8 192 addresses (/19 prefix))
  • 104.129.64.0/19 (8 192 addresses (/19 prefix))
  • 104.207.192.0/19 (8 192 addresses (/19 prefix))
  • 104.247.32.0/19 (8 192 addresses (/19 prefix))
  • 151.181.32.0/19 (8 192 addresses (/19 prefix))
  • 151.181.64.0/19 (8 192 addresses (/19 prefix))
  • 151.181.192.0/19 (8 192 addresses (/19 prefix))
  • 167.253.160.0/19 (8 192 addresses (/19 prefix))
  • 172.85.32.0/19 (8 192 addresses (/19 prefix))
  • 216.57.128.0/19 (8 192 addresses (/19 prefix))
  • 64.20.160.0/20 (4 096 addresses (/20 prefix))
  • 64.238.128.0/20 (4 096 addresses (/20 prefix))
  • 65.254.0.0/20 (4 096 addresses (/20 prefix))
  • 66.37.32.0/20 (4 096 addresses (/20 prefix))
  • 66.206.112.0/20 (4 096 addresses (/20 prefix))
  • 69.46.224.0/20 (4 096 addresses (/20 prefix))
  • 97.107.160.0/20 (4 096 addresses (/20 prefix))
  • 107.181.16.0/20 (4 096 addresses (/20 prefix))
  • 136.223.0.0/20 (4 096 addresses (/20 prefix))
  • 151.181.160.0/20 (4 096 addresses (/20 prefix))
  • 151.181.224.0/20 (4 096 addresses (/20 prefix))
  • 169.139.0.0/20 (4 096 addresses (/20 prefix))
  • 173.225.48.0/20 (4 096 addresses (/20 prefix))
  • 184.75.192.0/20 (4 096 addresses (/20 prefix))
  • 192.235.16.0/20 (4 096 addresses (/20 prefix))
  • 208.99.240.0/20 (4 096 addresses (/20 prefix))
  • 209.148.32.0/20 (4 096 addresses (/20 prefix))
  • 8.28.48.0/21 (2 048 addresses (/21 prefix))
  • 8.29.208.0/21 (2 048 addresses (/21 prefix))
  • 65.254.16.0/21 (2 048 addresses (/21 prefix))
  • 68.171.192.0/21 (2 048 addresses (/21 prefix))
  • 69.64.192.0/21 (2 048 addresses (/21 prefix))
  • 69.64.208.0/21 (2 048 addresses (/21 prefix))
  • 74.113.48.0/21 (2 048 addresses (/21 prefix))
  • 104.222.104.0/21 (2 048 addresses (/21 prefix))
  • 159.63.0.0/21 (2 048 addresses (/21 prefix))

IPv6 Prefixes (257 total)

  • 2604:1a00::/32
  • 2605:a900::/32
  • 2606:8180::/32
  • 2607:f518::/32
  • 2607:f7a8::/32
  • 2602:810:20c6::/47
  • 2604:200:1f::/48
  • 2604:200:1500::/48
  • 2620:11:c000::/48
  • 2620:131:6010::/48
  • 2670:d940:101::/48