Because you requested the table using a browser (rather then an NTRIP Client) it has been returned to you as an HTML page.
SOURCETABLE 200 OK Server: SubCarrier Systems Corp SNIP simpleNTRIP_Caster_[wLITE]R3.17.00/of:Dec 12 2024 Date: Sat, 06 December 2025 02:19:39 UTC Content-Type: text/plain Content-Length: 264 STR;SENTA_1;Senta_SERBIA;RTCM 3.2;1004(1),1005(1),1007(60),1008(60),1012(1),1032(60),1033(60),1077(1),1087(1),1097(1),1127(1),1230(10);2;GPS+GLO+GAL+BDS;SNIP;SRB;45.94;20.08;0;1;sNTRIP;yes;N;N;860;none NET;SNIP;;N;N;None;192.168.1.12:2101;None;; ENDSOURCETABLE
This Caster is being hosted on a private IP.
For Casters on a public IP, you can decode them with SNIP's NTRIP Caster Table Decoder page
[You can press the 'View All' button to see the Base Stations displayed on a map.]