Autonomous System

AS46887 Zayo Bandwidth

ISPActiveUnited StatesARIN

AS46887 (CROWNCASTLE-AS46887) is an ISP network operated by Zayo Bandwidth in United States, registered with ARIN. It has 795 IPv4 prefixes with 1,347,072 addresses and 256 IPv6 prefixes, which makes it the 364th largest of 82,283 active autonomous systems by IPv4 space.

IPv4 addresses1,347,072in 795 prefixes
IPv6 prefixes256≈ 3.6 × 10²⁹ addresses
Size rank#364of 82,283 active ASNs
Abuser scoreVery Low0.02% of its addresses flagged · method

Details

OrganizationZayo Bandwidth
AS nameCROWNCASTLE-AS46887
Websitezayo.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactabuse@zayo.com
Registered2009-04-13
Last updated2026-06-01

IPv4 prefixes

795 prefixes · 1,347,072 addresses
NetworkAddressesFirst – last address
9.179.0.0/1665,5369.179.0.0 – 9.179.255.255
9.191.0.0/1665,5369.191.0.0 – 9.191.255.255
131.239.0.0/1665,536131.239.0.0 – 131.239.255.255
138.123.0.0/1665,536138.123.0.0 – 138.123.255.255
144.121.0.0/1665,536144.121.0.0 – 144.121.255.255
149.70.0.0/1665,536149.70.0.0 – 149.70.255.255
160.72.0.0/1665,536160.72.0.0 – 160.72.255.255
165.158.0.0/1665,536165.158.0.0 – 165.158.255.255
209.160.128.0/1732,768209.160.128.0 – 209.160.255.255
144.121.0.0/1816,384144.121.0.0 – 144.121.63.255
144.121.64.0/1816,384144.121.64.0 – 144.121.127.255
144.121.192.0/1816,384144.121.192.0 – 144.121.255.255
158.59.128.0/1816,384158.59.128.0 – 158.59.191.255
158.59.192.0/1816,384158.59.192.0 – 158.59.255.255
160.72.64.0/1816,384160.72.64.0 – 160.72.127.255
64.72.64.0/198,19264.72.64.0 – 64.72.95.255
67.208.160.0/198,19267.208.160.0 – 67.208.191.255
69.195.32.0/198,19269.195.32.0 – 69.195.63.255
72.22.160.0/198,19272.22.160.0 – 72.22.191.255
76.8.64.0/198,19276.8.64.0 – 76.8.95.255
104.129.64.0/198,192104.129.64.0 – 104.129.95.255
104.207.192.0/198,192104.207.192.0 – 104.207.223.255
104.247.32.0/198,192104.247.32.0 – 104.247.63.255
144.121.128.0/198,192144.121.128.0 – 144.121.159.255
144.121.160.0/198,192144.121.160.0 – 144.121.191.255
The 25 largest of 795. The API and the database have all of them.

IPv6 prefixes

256 prefixes
  • 2604:1a00::/32
  • 2605:a900::/32
  • 2607:f518::/32
  • 2607:f7a8::/32
  • 2605:a900::/36
  • 2605:a900:1000::/36
  • 2605:a900:2000::/36
  • 2605:a900:3000::/36
  • 2605:a900:4000::/36
  • 2605:a900:5000::/36
  • 2607:f518:1000::/36
  • 2607:f7a8:400::/39
  • 2607:f7a8:600::/39
  • 2607:f7a8:a00::/39
  • 2607:f7a8:c00::/39
  • 2607:f7a8:1000::/39
  • 2607:f7a8:1600::/39
  • 2607:f7a8:1c00::/39
  • 2604:1a00:200::/40
  • 2604:1a00:a00::/40
  • 2602:810:20c6::/48
  • 2602:810:20c7::/48
  • 2604:200:1f::/48
  • 2604:200:1500::/48
  • 2604:1a00:1::/48
The 25 largest of 256. The API and the database have all of them.

Query AS46887 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS46887&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS46887, with or without a key:

curl "https://api.ipapi.is/?q=9.179.0.1"

Other networks of Zayo Bandwidth

6 of 11
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