Autonomous System

AS263683 Universidad de Costa Rica

EducationActiveCosta RicaLACNIC

AS263683 (AS263683) is an education network operated by Universidad de Costa Rica in Costa Rica, registered with LACNIC. It has 34 IPv4 prefixes with 42,240 addresses and 4 IPv6 prefixes, which makes it the 4,652nd largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses42,240in 34 prefixes
IPv6 prefixes4≈ 1.8 × 10²⁵ addresses
Size rank#4,652of 82,200 active ASNs
Abuser scoreVery Low0.02% of its addresses flagged · method

Details

OrganizationUniversidad de Costa Rica
AS nameAS263683
Websiteucr.ac.cr
Country Costa Rica (CR)
Network typeEducation
RegistryLACNIC
Abuse contactrebeca.esquivelflores@ucr.ac.cr
Registered20140916
Last updated20250617

IPv4 prefixes

34 prefixes · 42,240 addresses
NetworkAddressesFirst – last address
163.178.160.0/198,192163.178.160.0 – 163.178.191.255
163.178.224.0/198,192163.178.224.0 – 163.178.255.255
163.178.208.0/204,096163.178.208.0 – 163.178.223.255
163.178.56.0/212,048163.178.56.0 – 163.178.63.255
163.178.64.0/212,048163.178.64.0 – 163.178.71.255
163.178.112.0/212,048163.178.112.0 – 163.178.119.255
163.178.16.0/221,024163.178.16.0 – 163.178.19.255
163.178.48.0/221,024163.178.48.0 – 163.178.51.255
163.178.72.0/221,024163.178.72.0 – 163.178.75.255
163.178.84.0/221,024163.178.84.0 – 163.178.87.255
163.178.92.0/221,024163.178.92.0 – 163.178.95.255
163.178.100.0/221,024163.178.100.0 – 163.178.103.255
163.178.108.0/221,024163.178.108.0 – 163.178.111.255
163.178.124.0/221,024163.178.124.0 – 163.178.127.255
163.178.140.0/221,024163.178.140.0 – 163.178.143.255
163.178.52.0/23512163.178.52.0 – 163.178.53.255
163.178.76.0/23512163.178.76.0 – 163.178.77.255
163.178.82.0/23512163.178.82.0 – 163.178.83.255
163.178.88.0/23512163.178.88.0 – 163.178.89.255
163.178.104.0/23512163.178.104.0 – 163.178.105.255
163.178.122.0/23512163.178.122.0 – 163.178.123.255
163.178.8.0/24256163.178.8.0 – 163.178.8.255
163.178.54.0/24256163.178.54.0 – 163.178.54.255
163.178.55.0/24256163.178.55.0 – 163.178.55.255
163.178.79.0/24256163.178.79.0 – 163.178.79.255
The 25 largest of 34. The API and the database have all of them.

IPv6 prefixes

4 prefixes
  • 2801:15:8008::/45
  • 2801:15:8004::/46
  • 2801:15:8002::/47
  • 2801:15:8001::/48

Query AS263683 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=AS263683&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS263683, with or without a key:

curl "https://api.ipapi.is/?q=163.178.160.1"

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