Autonomous System

AS21506 Fundação Universidade de Brasília

EducationActiveBrazilLACNIC

AS21506 (AS21506) is an education network operated by Fundação Universidade de Brasília in Brazil, registered with LACNIC. It has 1 IPv4 prefix with 65,536 addresses and 1 IPv6 prefix, which makes it the 3,711th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses65,536in 1 prefix

IPv6 prefixes1≈ 1.2 × 10²⁴ addresses

Size rank#3,711of 82,200 active ASNs

Abuser scoreVery Low0.01% of its addresses flagged · method

Details

OrganizationFundação Universidade de Brasília

AS nameAS21506

Websiteunb.br

Country Brazil (BR)

Network typeEducation

RegistryLACNIC

Abuse contact—

Registered20130322

Last updated20130325

IPv4 prefixes

1 prefix · 65,536 addresses

Network	Addresses	First – last address
164.41.0.0/16	65,536	164.41.0.0 – 164.41.255.255

164.41.0.0/16

IPv6 prefixes

1 prefix

2801:80:b90::/48

2801:80:b90::/48

Query AS21506 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=AS21506&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS21506, with or without a key:

curl "https://api.ipapi.is/?q=164.41.0.1"

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