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Hosting & Network

isrfg12-tucson.org runs on AS1706, with email via Mimecast.

Hosting network
AS1706AS1706
Managed DNS
Self-hosted / other
Email
Mimecast
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 11 other sites on AS1706. Stable here since we started watching (Jul 23, 2026).

The apex and www are the same hosting — the apex via A records.

DNS Records for isrfg12-tucson.org

HostnameTypeTTLPriorityContent
isrfg12-tucson.orgA0128.196.13.3
isrfg12-tucson.orgSOA7200ns1.arizona.edu hostmaster.arizona.edu 2020052757 7200 3600 86400 7200
isrfg12-tucson.orgMX010usb-smtp-inbound-2.mimecast.com
isrfg12-tucson.orgMX010usb-smtp-inbound-1.mimecast.com
isrfg12-tucson.orgTXT0v=spf1 a mx ~all
isrfg12-tucson.orgNS0ns4.arizona.edu
isrfg12-tucson.orgNS0ns1.arizona.edu
isrfg12-tucson.orgNS0ns2.arizona.edu
isrfg12-tucson.orgNS0ns3.arizona.edu
www.isrfg12-tucson.orgMX010usb-smtp-inbound-1.mimecast.com
www.isrfg12-tucson.orgMX010usb-smtp-inbound-2.mimecast.com
www.isrfg12-tucson.orgA0128.196.13.3

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About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain