Autonomous System
AS12213 Centersquare
HostingActiveUnited StatesARIN
AS12213 (CNSQ-AS12213) is a hosting network operated by Centersquare in United States, registered with ARIN. It has 37 IPv4 prefixes with 41,216 addresses and 15 IPv6 prefixes, which makes it the 4,703rd largest of 82,558 active autonomous systems by IPv4 space.
IPv4 addresses41,216in 37 prefixes
IPv6 prefixes15≈ 4.6 × 10²⁷ addresses
Size rank#4,703of 82,558 active ASNs
Details
OrganizationCentersquare · hosting provider profile
AS nameCNSQ-AS12213
Websitecentersquaredc.com
Country United States (US)
Network typeHosting
RegistryARIN
Abuse contactasifuddin.mohammad@centersquaredc.com
Registered2017-10-20
Last updated2025-07-22
IPv4 prefixes
37 prefixes · 41,216 addresses| Network | Addresses | First – last address |
|---|---|---|
| 131.226.192.0/21 | 2,048 | 131.226.192.0 – 131.226.199.255 |
| 131.226.200.0/21 | 2,048 | 131.226.200.0 – 131.226.207.255 |
| 131.226.208.0/21 | 2,048 | 131.226.208.0 – 131.226.215.255 |
| 131.226.216.0/21 | 2,048 | 131.226.216.0 – 131.226.223.255 |
| 131.226.232.0/21 | 2,048 | 131.226.232.0 – 131.226.239.255 |
| 149.137.192.0/21 | 2,048 | 149.137.192.0 – 149.137.199.255 |
| 149.137.200.0/21 | 2,048 | 149.137.200.0 – 149.137.207.255 |
| 208.67.48.0/21 | 2,048 | 208.67.48.0 – 208.67.55.255 |
| 24.170.128.0/22 | 1,024 | 24.170.128.0 – 24.170.131.255 |
| 24.170.132.0/22 | 1,024 | 24.170.132.0 – 24.170.135.255 |
| 24.170.140.0/22 | 1,024 | 24.170.140.0 – 24.170.143.255 |
| 24.170.144.0/22 | 1,024 | 24.170.144.0 – 24.170.147.255 |
| 24.170.148.0/22 | 1,024 | 24.170.148.0 – 24.170.151.255 |
| 91.132.68.0/22 | 1,024 | 91.132.68.0 – 91.132.71.255 |
| 131.226.224.0/22 | 1,024 | 131.226.224.0 – 131.226.227.255 |
| 131.226.240.0/22 | 1,024 | 131.226.240.0 – 131.226.243.255 |
| 131.226.244.0/22 | 1,024 | 131.226.244.0 – 131.226.247.255 |
| 131.226.248.0/22 | 1,024 | 131.226.248.0 – 131.226.251.255 |
| 131.226.252.0/22 | 1,024 | 131.226.252.0 – 131.226.255.255 |
| 149.137.216.0/22 | 1,024 | 149.137.216.0 – 149.137.219.255 |
| 149.137.220.0/22 | 1,024 | 149.137.220.0 – 149.137.223.255 |
| 149.137.224.0/22 | 1,024 | 149.137.224.0 – 149.137.227.255 |
| 149.137.228.0/22 | 1,024 | 149.137.228.0 – 149.137.231.255 |
| 149.137.232.0/22 | 1,024 | 149.137.232.0 – 149.137.235.255 |
| 149.137.236.0/22 | 1,024 | 149.137.236.0 – 149.137.239.255 |
131.226.192.0/21 131.226.200.0/21 131.226.208.0/21 131.226.216.0/21 131.226.232.0/21 149.137.192.0/21 149.137.200.0/21 208.67.48.0/21 24.170.128.0/22 24.170.132.0/22 24.170.140.0/22 24.170.144.0/22 24.170.148.0/22 91.132.68.0/22 131.226.224.0/22 131.226.240.0/22 131.226.244.0/22 131.226.248.0/22 131.226.252.0/22 149.137.216.0/22 149.137.220.0/22 149.137.224.0/22 149.137.228.0/22 149.137.232.0/22 149.137.236.0/22
The 25 largest of 37. The API and the database have all of them.
IPv6 prefixes
15 prefixes- 2604:7ac0::/40
- 2604:7ac0:100::/40
- 2604:7ac0:200::/40
- 2604:7ac0:300::/40
- 2604:7ac0:400::/40
- 2604:7ac0:500::/40
- 2604:7ac0:600::/40
- 2604:7ac0:700::/40
- 2604:7ac0:800::/40
- 2604:7ac0:d00::/40
- 2604:7ac0:e00::/40
- 2604:7ac0:f00::/40
- 2604:7ac0:1000::/40
- 2604:7ac0:1100::/40
- 2a09:bf80::/40
2604:7ac0::/40 2604:7ac0:100::/40 2604:7ac0:200::/40 2604:7ac0:300::/40 2604:7ac0:400::/40 2604:7ac0:500::/40 2604:7ac0:600::/40 2604:7ac0:700::/40 2604:7ac0:800::/40 2604:7ac0:d00::/40 2604:7ac0:e00::/40 2604:7ac0:f00::/40 2604:7ac0:1000::/40 2604:7ac0:1100::/40 2a09:bf80::/40
Query AS12213 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=AS12213&key=YOUR_API_KEY"
Any address in its prefixes resolves to AS12213, with or without a key:
curl "https://api.ipapi.is/?q=131.226.192.1"
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