NETCALC
IP / CIDR SUBNET CALCULATOR · VLSM · NETWORK TOOLS
// HYLAS SECURITY FIELDKIT
v1.0
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⬡ SUBNET CALC
⬡ VLSM / SPLIT
⬡ IP CONVERTER
⬡ IP RANGE
⬡ QUICK REF
NETWORK INPUT
CIDR notation, e.g. 10.0.0.0/8 or 172.16.0.100/20
CIDR PREFIX
/24
/0
/8
/16
/24
/32
USABLE HOSTS
254
TOTAL ADDRESSES
256
CLASS
A
TYPE
Private
RFC
RFC 1918
DEFAULT MASK
255.0.0.0
CALCULATE
COPY ALL
SUBNET DETAILS
NETWORK ADDRESS
—
COPY
SUBNET MASK
—
COPY
WILDCARD MASK
—
COPY
FIRST USABLE HOST
—
COPY
LAST USABLE HOST
—
COPY
BROADCAST ADDRESS
—
COPY
USABLE HOSTS
—
TOTAL ADDRESSES
—
CIDR NOTATION
—
COPY
HEX NETWORK
—
HEX MASK
—
INT (NETWORK)
—
INT (BROADCAST)
—
BINARY REPRESENTATION
VLSM — VARIABLE LENGTH SUBNET MASKING
Base network to divide
Subnet requirements (hosts needed per subnet, one per line):
CALCULATE VLSM
EXPORT TABLE
IP ADDRESS CONVERTER
DOTTED DECIMAL
INTEGER (32-bit)
HEXADECIMAL
BINARY (dotted)
OCTET BREAKDOWN
MASK CONVERTER
DOTTED MASK
CIDR PREFIX
WILDCARD
IP RANGE CALCULATOR
START IP
END IP
CALCULATE RANGE
LIST FIRST 50
COMMON CIDR REFERENCE
CIDR
MASK
WILDCARD
HOSTS
ADDRESSES
USE CASE
RFC 1918 PRIVATE RANGES
SPECIAL / RESERVED RANGES
READY — ENTER A NETWORK ADDRESS
HYLAS FIELDKIT