20.123.51.221

IP format

IPv4 addresses can be represented in several formats. This may be useful to store IP addresses in a more efficient way (for example, storing IPs as UNSIGNED INT requires less space and may be a faster solution) or to bypass some filters (for example, something doesn’t allow you to specify IPs from private range, but since it filters only quad-dotted IPv4 address representation you can specify IP as decimal number). Below are listed almost all formats as IP 20.123.51.221 can be represented (actually there are more formats, since you can mix multiple formats).

Description Notation Command Example
Decimal number 343618525 ping 343618525
Dotted-decimal notation 20.123.51.221 ping 20.123.51.221
Decimal.Octal.Hexadecimal.Decimal 20.0173.0x33.221 ping 20.0173.0x33.221
Hexadecimal number 0x147b33dd ping 0x147b33dd
Dotted-hexadecimal notation 0x14.0x7b.0x33.0xdd ping 0x14.0x7b.0x33.0xdd
Hexadecimal.Octal.Decimal.Hexadecimal 0x14.0173.51.0xdd ping 0x14.0173.51.0xdd
Octal number 02436631735 ping 02436631735
Dotted-octal notation 0024.0173.0063.0335 ping 0024.0173.0063.0335
Octal.Decimal.Hexadecimal.Octal 0024.123.0x33.0335 ping 0024.123.0x33.0335
Decimal IPv4-mapped IPv6 address ::ffff:20.123.51.221 ping ::ffff:20.123.51.221
Hexadecimal IPv4-mapped IPv6 address ::ffff:147b:33dd ping ::ffff:147b:33dd

Details of the network 20.123.51.221

There are some technical details about the network 20.123.51.221 and its subnet, as well as some details about IP itself. Please note that this information may contain inaccuracies or outdated data.

Name Value
Country UNITED STATES
Company MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation
AS Number AS8075
Address Block 20.123.51.0/24
Subnet Mask 255.255.255.0
Broadcast Address 20.123.51.255
Address Range 20.123.51.1 - 20.123.51.254
Number of IP Addresses 256
Number of Valid Hosts 254
Previous IP Address 20.123.51.220
Next IP Address 20.123.51.222

Check if IP 20.123.51.221 is blacklisted

Dozens of companies are managing lists of blocked IP addresses in order to stop spamming, unethical hacking, and other malicious actions. These blacklists (also known as DNSBL and RBL) can contain both IP addresses and domains. Below we will try to lookup IP 20.123.51.221 through several backlists and find out who considers this IP to be malicious. Click to get real-time data.

DNSBL Server Listed FQDN
all.s5h.net Unknown 221.51.123.20.all.s5h.net.
b.barracudacentral.org Unknown 221.51.123.20.b.barracudacentral.org.
bl.spamcop.net Unknown 221.51.123.20.bl.spamcop.net.
blacklist.woody.ch Unknown 221.51.123.20.blacklist.woody.ch.
bogons.cymru.com Unknown 221.51.123.20.bogons.cymru.com.
cbl.abuseat.org Unknown 221.51.123.20.cbl.abuseat.org.
combined.abuse.ch Unknown 221.51.123.20.combined.abuse.ch.
db.wpbl.info Unknown 221.51.123.20.db.wpbl.info.
dnsbl-1.uceprotect.net Unknown 221.51.123.20.dnsbl-1.uceprotect.net.
dnsbl-2.uceprotect.net Unknown 221.51.123.20.dnsbl-2.uceprotect.net.
dnsbl-3.uceprotect.net Unknown 221.51.123.20.dnsbl-3.uceprotect.net.
dnsbl.anticaptcha.net Unknown 221.51.123.20.dnsbl.anticaptcha.net.
dnsbl.dronebl.org Unknown 221.51.123.20.dnsbl.dronebl.org.
dnsbl.inps.de Unknown 221.51.123.20.dnsbl.inps.de.
dnsbl.sorbs.net Unknown 221.51.123.20.dnsbl.sorbs.net.
dnsbl.spfbl.net Unknown 221.51.123.20.dnsbl.spfbl.net.
drone.abuse.ch Unknown 221.51.123.20.drone.abuse.ch.
duinv.aupads.org Unknown 221.51.123.20.duinv.aupads.org.
dul.dnsbl.sorbs.net Unknown 221.51.123.20.dul.dnsbl.sorbs.net.
dyna.spamrats.com Unknown 221.51.123.20.dyna.spamrats.com.
dynip.rothen.com Unknown 221.51.123.20.dynip.rothen.com.
http.dnsbl.sorbs.net Unknown 221.51.123.20.http.dnsbl.sorbs.net.
ips.backscatterer.org Unknown 221.51.123.20.ips.backscatterer.org.
ix.dnsbl.manitu.net Unknown 221.51.123.20.ix.dnsbl.manitu.net.
korea.services.net Unknown 221.51.123.20.korea.services.net.
misc.dnsbl.sorbs.net Unknown 221.51.123.20.misc.dnsbl.sorbs.net.
noptr.spamrats.com Unknown 221.51.123.20.noptr.spamrats.com.
orvedb.aupads.org Unknown 221.51.123.20.orvedb.aupads.org.
pbl.spamhaus.org Unknown 221.51.123.20.pbl.spamhaus.org.
proxy.bl.gweep.ca Unknown 221.51.123.20.proxy.bl.gweep.ca.
psbl.surriel.com Unknown 221.51.123.20.psbl.surriel.com.
relays.bl.gweep.ca Unknown 221.51.123.20.relays.bl.gweep.ca.
relays.nether.net Unknown 221.51.123.20.relays.nether.net.
sbl.spamhaus.org Unknown 221.51.123.20.sbl.spamhaus.org.
singular.ttk.pte.hu Unknown 221.51.123.20.singular.ttk.pte.hu.
smtp.dnsbl.sorbs.net Unknown 221.51.123.20.smtp.dnsbl.sorbs.net.
socks.dnsbl.sorbs.net Unknown 221.51.123.20.socks.dnsbl.sorbs.net.
spam.abuse.ch Unknown 221.51.123.20.spam.abuse.ch.
spam.dnsbl.anonmails.de Unknown 221.51.123.20.spam.dnsbl.anonmails.de.
spam.dnsbl.sorbs.net Unknown 221.51.123.20.spam.dnsbl.sorbs.net.
spam.spamrats.com Unknown 221.51.123.20.spam.spamrats.com.
spambot.bls.digibase.ca Unknown 221.51.123.20.spambot.bls.digibase.ca.
spamrbl.imp.ch Unknown 221.51.123.20.spamrbl.imp.ch.
spamsources.fabel.dk Unknown 221.51.123.20.spamsources.fabel.dk.
ubl.lashback.com Unknown 221.51.123.20.ubl.lashback.com.
ubl.unsubscore.com Unknown 221.51.123.20.ubl.unsubscore.com.
virus.rbl.jp Unknown 221.51.123.20.virus.rbl.jp.
web.dnsbl.sorbs.net Unknown 221.51.123.20.web.dnsbl.sorbs.net.
wormrbl.imp.ch Unknown 221.51.123.20.wormrbl.imp.ch.
xbl.spamhaus.org Unknown 221.51.123.20.xbl.spamhaus.org.
z.mailspike.net Unknown 221.51.123.20.z.mailspike.net.
zen.spamhaus.org Unknown 221.51.123.20.zen.spamhaus.org.
zombie.dnsbl.sorbs.net Unknown 221.51.123.20.zombie.dnsbl.sorbs.net.
spamguard.leadmon.net Unknown 221.51.123.20.spamguard.leadmon.net.
rbl-plus.mail-abuse.org Unknown 221.51.123.20.rbl-plus.mail-abuse.org.
httpbl.abuse.ch Unknown 221.51.123.20.httpbl.abuse.ch.
combined.njabl.org Unknown 221.51.123.20.combined.njabl.org.
rbl.efnetrbl.org Unknown 221.51.123.20.rbl.efnetrbl.org.
cbl.anti-spam.org.cn Unknown 221.51.123.20.cbl.anti-spam.org.cn.
bl.spamcannibal.org Unknown 221.51.123.20.bl.spamcannibal.org.
rbl.suresupport.com Unknown 221.51.123.20.rbl.suresupport.com.
csi.cloudmark.com Unknown 221.51.123.20.csi.cloudmark.com.
rbl.interserver.net Unknown 221.51.123.20.rbl.interserver.net.
virbl.bit.nl Unknown 221.51.123.20.virbl.bit.nl.
short.rbl.jp Unknown 221.51.123.20.short.rbl.jp.
blackholes.mail-abuse.org Unknown 221.51.123.20.blackholes.mail-abuse.org.
truncate.gbudb.net Unknown 221.51.123.20.truncate.gbudb.net.
query.senderbase.org Unknown 221.51.123.20.query.senderbase.org.
opm.tornevall.org Unknown 221.51.123.20.opm.tornevall.org.
netblock.pedantic.org Unknown 221.51.123.20.netblock.pedantic.org.
access.redhawk.org Unknown 221.51.123.20.access.redhawk.org.
cdl.anti-spam.org.cn Unknown 221.51.123.20.cdl.anti-spam.org.cn.
multi.surbl.org Unknown 221.51.123.20.multi.surbl.org.
dsn.rfc-ignorant.org Unknown 221.51.123.20.dsn.rfc-ignorant.org.
dnsbl.njabl.org Unknown 221.51.123.20.dnsbl.njabl.org.
relays.mail-abuse.org Unknown 221.51.123.20.relays.mail-abuse.org.
rbl.spamlab.com Unknown 221.51.123.20.rbl.spamlab.com.
all.bl.blocklist.de Unknown 221.51.123.20.all.bl.blocklist.de.

Block the IP 20.123.51.221

If the IP 20.123.51.221 has aggressive behavior or should not have access to your private resources, you can block/ban it using your firewall, webserver, or programming language. Below are some examples of how to restrict this IP address from accessing your machine.

Algorithm Example
Apache <RequireAll>
  Require all granted
  Require not ip 20.123.51.221
</RequireAll>
iptables iptables -A INPUT -s 20.123.51.221 -j DROP
Nginx location / {
  deny 20.123.51.221;
}
Node.js if (request.connection.remoteAddress === '20.123.51.221') {
  return console.log(403);
}
PHP if (filter_input(INPUT_SERVER, 'REMOTE_ADDR') == '20.123.51.221') {
  return print(403);
}
Python if (os.environ['REMOTE_ADDR'] == '20.123.51.221')
  return print(403);
web.config <security>
  <ipSecurity allowUnlisted="true">
    <add ipAddress="20.123.51.221"/>
  </ipSecurity>
</security>

Results of different encoding algorithms for IP 20.123.51.221

Algorithm Encoding Result
Ascii85 1,(=81,CO?0eP4:0`
Base64 MjAuMTIzLjUxLjIyMQ==
Binary 10100011110110011001111011101
Morse Code ..--------  .-.-.-  .----..---...--  .-.-.-  ......----  .-.-.-  ..---..---.----
Phonetic Two Zero Dot One Two Three Dot Five One Dot Two Two One
Uuencode -,C`N,3(S+C4Q+C(R,0`` `

Hashes of different hashing algorithms for IP 20.123.51.221

Hashing algorithms are one-way functions that do not have a reversible algorithm. Most commonly they are used to check data integrity, prevent the data forgery, and hide sensitive information. For example, some developers may hash the clients IP addresses, that is why below are listed hashes of different hashing algorithms for IP 20.123.51.221.

Algorithm Hash Value
md2 755ef050611614eeaa4b624361b975c9
md4 4c610567a5c653c8bf9955f51efa43c0
md5 606c7194d355caf9742a347a0e7b117b
sha1 fba303cd1b246854c21cea72c6e8435a285f6183
sha224 fbf746c400ae6e62d0a893839f6be57ec2ae9260bc623d726def29b4
sha256 ca2eb5c50e38dfaf7a78e104746bf5c4e42ebb36811ba621c0bfd6903872aa48
sha384 28c756bd416f04633c0d22c9cc6aa9e04097b5d393ceea97c06846a22550c7d8e72c8b5319296c3339606fa4b9f679ed
sha512 7ebd3d9a2dd8bd3081f8326ad8f2ce82eaf65c8c42ad0624a22e54dd42fdce59a60d8839d2eea6681b60b0d3a9d41a94a2e3e6a8ff6aa6601ed2bab08297000f
ripemd128 36890d35ab043a4fbb91b1d45c93a8a1
ripemd160 96b00c1243530ec9273d95633aedbb9bb52748a0
ripemd256 008a09ac983d9009f635c035adeb928a980caa3c064a2631db7190e4e756bfeb
ripemd320 fa27abfff433e59b2489ad9f64316b8718f65d694a26e8f5e1303fc7c5e0f902fece04c1bf408b04
whirlpool 6159ff2a8d2a217d87ced33baa574294f54e881d8dba99329e468105a8b1ed8f550e769171c4d1771176f3cb025a765c85b801a10eab963a4cc612a6033898e6
tiger128,3 3a22f6b0b19a87d673290022853b7d9e
tiger160,3 3a22f6b0b19a87d673290022853b7d9e320016eb
tiger192,3 3a22f6b0b19a87d673290022853b7d9e320016ebeda31efe
tiger128,4 0b6c5e1ad31796d1b4c4d9773b361f89
tiger160,4 0b6c5e1ad31796d1b4c4d9773b361f89d062ce38
tiger192,4 0b6c5e1ad31796d1b4c4d9773b361f89d062ce383f421d0b
snefru a56bf0ba28259c460970f4cbc58262d1e8a902b9416ac78575c0751532103149
snefru256 a56bf0ba28259c460970f4cbc58262d1e8a902b9416ac78575c0751532103149
gost 98c4f2b241fab5227ba070a517c23edce3f25d6f7b5522f8b91f268aa78c683c
gost-crypto d34a2485808c5cec58069c9a7350ab804cfefedc1a4a4f3380087992489b7184
adler32 116d027e
crc32 b52bbda9
crc32b a8fe21ae
fnv132 f332abb4
fnv1a32 e472ac26
fnv164 b084fe183bba0054
fnv1a64 45bef183e38930e6
joaat 0733a5b3
haval128,3 fde95e9b2be19c0904ece51fce6a3bfc
haval160,3 4490f4d5ab1ee0d08ed67ae8b1722f9a3170fd98
haval192,3 d041b932ec226ed81ce0d51b4478559651ac55bbcd1d55ed
haval224,3 0f61de89e974bc532985a5cdf4bf757a8ea0d9129c7d8696e90d2a7b
haval256,3 54f8e7c1351ed9f75bb2290ae1c4ff18ebe0500fe21ceb24339eab400c656904
haval128,4 baf6a3c87e054d545316b34292055628
haval160,4 37419e7eb19477d1c81f29037cf267734fbaae2d
haval192,4 04dd96b91b4c4149f57c528961bf10fe0de124a2df31c2fa
haval224,4 b01f539c9ce1ff2ecd40637cd44aef7a5fa845ba5e4e702d3b8396e7
haval256,4 f7354d23f764ec009b9338ff4d0eaab86420fbed0993db8f0eafc8d4b7b065df
haval128,5 ffbd455805b01a64d1a85ff73d1bab06
haval160,5 204b40f942f0351b55d561ef5659ee6b18332d75
haval192,5 9f9f0ddbb0df1919b07c6d75a17a817f2da3d436a61059d2
haval224,5 183d4467c861701d1854167d069b84234170a5723b329741cdcb516b
haval256,5 349a89f40b735dcab47477b0816da3915e3f364e313eebb045148939583384c8

Barcodes for IP 20.123.51.221

Barcodes are widely used almost everywhere in the world, and this website is not an exception. Since barcodes are representing data in a machine-readable form, they are make life easier for people who are trying to interact and communicate with various devices. To make this website a little more useful for both people and machines, below are provided the most popular barcodes for IP 20.123.51.221.

Symbology Barcode Image
QR Code QR Code of 20.123.51.221
Codabar Codabar of 20.123.51.221
ITF-14 ITF-14 of 20.123.51.221
Data Matrix Data Matrix of 20.123.51.221
UPC-A UPC-A of 20.123.51.221
Code 39 Code 39 of 20.123.51.221
EAN-8 EAN-8 of 20.123.51.221