Recognised as IPv4 subnet
127.88.100.0/25
- IPv4
- Loopback
- /25
- 126 hosts
127.88.100.0/25 is an IPv4 subnet of 128 addresses, of which 126 are usable hosts. Its network address is 127.88.100.0, its broadcast address is 127.88.100.127, and its subnet mask is 255.255.255.128. 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 127.88.100.0/25
Network address127.88.100.0
Broadcast address127.88.100.127
Subnet mask255.255.255.128
Wildcard mask0.0.0.127the inverse mask, as used in ACLs
Prefix length/25
Total addresses128
Usable hosts126the network and broadcast addresses are not assignable
First usable host127.88.100.1
Last usable host127.88.100.126
Host range127.88.100.1 – 127.88.100.126
Mask in binary11111111.11111111.11111111.10000000
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
Related prefixes
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