OSN

Host

213.1.221.72

Tags: Self-signed certificate

As of our latest check on 2026-06-07, 213.1.221.72 (British Telecommunications Limited, AS2856, United Kingdom) had 1 open port (443) and no known CVEs.

Known CVEs on this host

1open port
0names pointing here
0known CVEs
0known exploited

Open ports and CVEs as of our latest check of this host, 2026-06-07.

No known CVEs on this host.

Network
British Telecommunications Limited AS2856
Open ports
443 · at our latest check, 2026-06-07
Location
United Kingdom GB
Route
213.1.0.0/16 · announced by British Telecommunications Limited AS2856 RPKI valid
Organisation
BTnet (BT's UK IP Network - AS2856) · Network service provider (transit)
Registry network
MICROSS-COMPONENTS · 213.1.221.64 - 213.1.221.79 · RIPE
Abuse contact
[email protected] · for MICROSS-COMPONENTS
First seen
2026-06-07 16:32 UTC
Last seen alive
2026-06-07 16:33 UTC
Hosted domains
No host name points here

Reputation

Not a Tor relay, not a VPN or privacy relay address, and not on a current public blocklist.

Services (1)

443/tcp TLS first 2026-06-07 · last 2026-06-07
TLS
TLSv1.2
Certificate for
Default-Server-Certificate-837DE4F0
Issued by
Default-Server-Certificate-837DE4F0
Valid
2023-07-14 → 2053-07-06
Note
self-signed certificate
Raw response 
B-��b9�;�*]�0	�ـ��-�h%DOWNGRD�/����0��0���Fќ����{0
	*�H��
0��10	UUS10U
California10U	Sunnyvale10U
Fortinet10UFortiauthenticator1,0*U#Default-Server-Certificate-837DE4F00 
230714150340Z20530706150340Z0��10	UUS10U
California10U	Sunnyvale10U
Fortinet10UFortiauthenticator1,0*U#Default-Server-Certificate-837DE4F00�"0
	*�H��
�0�
���1��#��uIB+6�6���d,�Tc>ō�F8��}8�ɋ�d}.��(	Z��z�#m O���=.9t�n��w�ib#����uj)h-��}�#v�MQ�B��-��=*��}��ˊo��c�i�q��v�6�i� �Evh(<3G�;pX���hJ�5�:aA����_	�E�"���b�;�px��l|n��o��
�N.�_�9�Y���<�/�0�
�"?w���Кϛ�r�
���� D���xO������nM/E�u���2��'-�؟x����;�v�<�f���Zc�֊��Y.�"4V�v�M�fȂ^�N��F\����$����
��v�
@���/Tdz���{ϼ��...<truncated>

Port history

Every port that has answered a connection on this address, and when. A port is listed as open above only when a service was identified on it. Times are UTC.

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