fail2ban bad ip database: ip 24.4.72.24

# Nmap 6.40 scan initiated Fri Nov 16 11:26:02 2018 as: /usr/bin/nmap -sU -sS -O 24.4.72.24
Nmap scan report for c-24-4-72-24.hsd1.ca.comcast.net (24.4.72.24)
Host is up (0.16s latency).
Not shown: 1965 closed ports
PORT     STATE         SERVICE
22/tcp   open          ssh
25/tcp   filtered      smtp
80/tcp   open          http
110/tcp  open          pop3
135/tcp  filtered      msrpc
139/tcp  filtered      netbios-ssn
143/tcp  open          imap
443/tcp  open          https
445/tcp  filtered      microsoft-ds
993/tcp  open          imaps
995/tcp  open          pop3s
1080/tcp filtered      socks
1723/tcp open          pptp
3389/tcp open          ms-wbt-server
4662/tcp filtered      edonkey
6881/tcp open          bittorrent-tracker
8443/tcp open          https-alt
8888/tcp open          sun-answerbook
9000/tcp open          cslistener
67/udp   open|filtered dhcps
68/udp   open|filtered dhcpc
135/udp  open|filtered msrpc
136/udp  open|filtered profile
137/udp  open|filtered netbios-ns
138/udp  open|filtered netbios-dgm
139/udp  open|filtered netbios-ssn
161/udp  open|filtered snmp
520/udp  open|filtered route
1080/udp open|filtered socks
1900/udp open|filtered upnp
3389/udp open|filtered ms-wbt-server
4666/udp filtered      edonkey
4672/udp filtered      rfa
5353/udp open|filtered zeroconf
5355/udp open|filtered llmnr
Device type: general purpose|WAP|phone|media device
Running (JUST GUESSING): Linux 2.6.X|3.X (88%), PheeNet embedded (88%), Google Android 4.X (85%), Netgear embedded (85%), Western Digital embedded (85%), Comtrend embedded (85%)
OS CPE: cpe:/o:linux:linux_kernel:2.6 cpe:/h:pheenet:wap-854gp cpe:/o:linux:linux_kernel:3 cpe:/o:google:android:4.0.4 cpe:/h:netgear:dg834g cpe:/o:westerndigital:wd_tv cpe:/h:comtrend:ct536
Aggressive OS guesses: Linux 2.6.18 - 2.6.32 (88%), PheeNet WAP-854GP WAP (88%), Linux 2.6.32 (88%), Linux 2.6.32 - 3.9 (87%), Linux 2.6.32 - 2.6.35 (86%), Linux 2.6.32 - 3.2 (86%), Linux 2.6.38 - 3.5 (86%), Linux 3.8 (86%), Linux 2.6.38 (86%), Linux 3.6 (86%)
No exact OS matches for host (test conditions non-ideal).
Network Distance: 20 hops

OS detection performed. Please report any incorrect results at http://nmap.org/submit/ .
# Nmap done at Fri Nov 16 11:48:46 2018 -- 1 IP address (1 host up) scanned in 1365.31 seconds