The support at tripnet.se denies serving www.infoglue.org

[stefanand]

After contact with the tripnet support they say that they haven't hosted www.infoglue.org for long time.

When doing:

dig infoglue.org

; <<>> DiG 9.10.4-P6-RedHat-9.10.4-4.P6.fc25 <<>> infoglue.org
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44133
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 5

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;infoglue.org. IN A

;; ANSWER SECTION:
infoglue.org. 3600 IN A 54.246.89.20

;; AUTHORITY SECTION:
infoglue.org. 86400 IN NS ns1.tripnet.se.
infoglue.org. 86400 IN NS ns2.tripnet.se.

;; ADDITIONAL SECTION:
ns1.tripnet.se. 55885 IN A 31.47.201.20
ns1.tripnet.se. 64059 IN AAAA 2a02:24f8:0:1001::53
ns2.tripnet.se. 55885 IN A 31.47.201.28
ns2.tripnet.se. 64059 IN AAAA 2a02:24f8:0:1002::53

;; Query time: 403 msec
;; SERVER: 192.168.0.1#53(192.168.0.1)
;; WHEN: Wed Apr 05 00:31:24 CEST 2017
;; MSG SIZE rcvd: 191

it is stilled registered by tripnet in the dns records.

What is going on?