Hostname

tuc.ca

Last fetched Thu, 16 Jul 2026 08:03:04 GMT

tuc.ca resolves to 1 IPv4 address operated by TUCAN - TRANS UNION OF CANADA, INC. in CA. WHOIS lists iana:2397937 as the registrar.

Nutrition Label

Resolution chain

tuc.ca resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
205.207.115.137	205.207.115.0/24	AS396126	TUCAN - TRANS UNION OF CANADA, INC.	CA

WHOIS identity

Registrar: iana:2397937
Organization: trans union llc, tma206702
Contact emails: —

Subdomains

3 observed subdomains of tuc.ca.

Subdomain
eft.tuc.ca
extranet.tuc.ca
www.tuc.ca

Web-graph footprint

Distinct hostnames that link to or from tuc.ca in the public web crawl.

27 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

4 SPF mechanisms authorising senders for tuc.ca.

Mechanism	Target
SPF_INCLUDE	spf-00030c01.pphosted.com
SPF_INCLUDE	spf.protection.outlook.com
SPF_IP	66.175.245.8
SPF_IP	66.175.249.135

Pivot deeper into the graph from tuc.ca.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "tuc.ca"})-[:RESOLVES_TO]->(ip:IPV4)
      -[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)
      -[:ROUTES]->(asn:ASN)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, asn.name AS asn, n.name AS operator
LIMIT 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.