Autonomous System

AS33132 Zayo Bandwidth

ISPActiveUnited StatesARIN

AS33132 (CROWNCASTLE-AS33132) is an ISP network operated by Zayo Bandwidth in United States, registered with ARIN. It has 49 IPv4 prefixes with 140,032 addresses and 23 IPv6 prefixes, which makes it the 1,691st largest of 82,283 active autonomous systems by IPv4 space.

IPv4 addresses140,032in 49 prefixes
IPv6 prefixes23≈ 8.0 × 10²⁸ addresses
Size rank#1,691of 82,283 active ASNs
Abuser scoreLow0.06% of its addresses flagged · method

Details

OrganizationZayo Bandwidth
AS nameCROWNCASTLE-AS33132
Websitezayo.com
Country United States (US)
Network typeISP
RegistryARIN
Abuse contactabuse@zayo.com
Registered2004-10-07
Last updated2026-06-01

IPv4 prefixes

49 prefixes · 140,032 addresses
NetworkAddressesFirst – last address
170.55.0.0/1665,536170.55.0.0 – 170.55.255.255
167.93.0.0/1732,768167.93.0.0 – 167.93.127.255
45.73.144.0/204,09645.73.144.0 – 45.73.159.255
69.80.64.0/204,09669.80.64.0 – 69.80.79.255
45.42.56.0/212,04845.42.56.0 – 45.42.63.255
74.120.40.0/212,04874.120.40.0 – 74.120.47.255
104.219.176.0/212,048104.219.176.0 – 104.219.183.255
162.213.144.0/212,048162.213.144.0 – 162.213.151.255
162.246.136.0/212,048162.246.136.0 – 162.246.143.255
162.252.120.0/212,048162.252.120.0 – 162.252.127.255
199.26.72.0/212,048199.26.72.0 – 199.26.79.255
199.27.240.0/212,048199.27.240.0 – 199.27.247.255
199.189.192.0/212,048199.189.192.0 – 199.189.199.255
204.28.104.0/212,048204.28.104.0 – 204.28.111.255
74.115.232.0/221,02474.115.232.0 – 74.115.235.255
198.72.44.0/221,024198.72.44.0 – 198.72.47.255
199.167.100.0/221,024199.167.100.0 – 199.167.103.255
204.88.28.0/221,024204.88.28.0 – 204.88.31.255
208.67.164.0/221,024208.67.164.0 – 208.67.167.255
170.55.52.0/23512170.55.52.0 – 170.55.53.255
45.73.155.0/2425645.73.155.0 – 45.73.155.255
45.73.156.0/2425645.73.156.0 – 45.73.156.255
74.120.46.0/2425674.120.46.0 – 74.120.46.255
140.82.213.0/24256140.82.213.0 – 140.82.213.255
141.193.54.0/24256141.193.54.0 – 141.193.54.255
The 25 largest of 49. The API and the database have all of them.

IPv6 prefixes

23 prefixes
  • 2604:200::/32
  • 2602:80f:b000::/40
  • 2604:200:4::/48
  • 2604:200:6::/48
  • 2604:200:8::/48
  • 2604:200:9::/48
  • 2604:200:a::/48
  • 2604:200:b::/48
  • 2604:200:c::/48
  • 2604:200:d::/48
  • 2604:200:e::/48
  • 2604:200:f::/48
  • 2604:200:11::/48
  • 2604:200:13::/48
  • 2604:200:17::/48
  • 2604:200:18::/48
  • 2604:200:19::/48
  • 2604:200:1a::/48
  • 2604:200:1d::/48
  • 2604:200:1e::/48
  • 2604:1a00:59::/48
  • 2604:1a00:5d::/48
  • 2604:1a00:cc::/48

Query AS33132 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=AS33132&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS33132, with or without a key:

curl "https://api.ipapi.is/?q=170.55.0.1"

Other networks of Zayo Bandwidth

6 of 11
AS6461 Zayo Bandwidth1,756,160 IPv4 addressesAS46887 Zayo Bandwidth1,347,072 IPv4 addressesAS11686 Zayo Bandwidth965,376 IPv4 addressesAS19092 Zayo Bandwidth93,696 IPv4 addressesAS32703 Zayo Bandwidth67,840 IPv4 addressesAS27506 Zayo Bandwidth51,200 IPv4 addresses

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