Recognised as IPv4 subnet
127.88.100.0/30
- IPv4
- Loopback
- /30
- 2 hosts
127.88.100.0/30 is an IPv4 subnet of 4 addresses, of which 2 are usable hosts. Its network address is 127.88.100.0, its broadcast address is 127.88.100.3, and its subnet mask is 255.255.255.252. The block is loopback: RFC 1122, never leaves the host.
Address
01111111010110000110010000000000
Dotted decimal127.88.100.0
32-bit integer2,136,499,200
Hexadecimal0x7F586400
Binary01111111.01011000.01100100.00000000
Octal0177.0130.0144.00
Octets1: 127 · 2: 88 · 3: 100 · 4: 0
Reverse DNS name0.100.88.127.in-addr.arpa
IPv4-mapped IPv6::ffff:127.88.100.0
IPv6 compact form::ffff:7f58:6400
Subnet 127.88.100.0/30
Network address127.88.100.0
Broadcast address127.88.100.3
Subnet mask255.255.255.252
Wildcard mask0.0.0.3the inverse mask, as used in ACLs
Prefix length/30
Total addresses4
Usable hosts2the network and broadcast addresses are not assignable
First usable host127.88.100.1
Last usable host127.88.100.2
Host range127.88.100.1 – 127.88.100.2
Mask in binary11111111.11111111.11111111.11111100
Contains this addressYes
Scope & registry
TypeLoopbackRFC 1122, never leaves the host
Routable on the public internetNo
Legacy classA (/8 by the old classful scheme)classful addressing was replaced by CIDR in 1993; shown for reference only
LoopbackYes
MulticastNo
Safe to use in documentationNo
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