42.252.210.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
42.252.210.0
Broadcast Address
42.252.210.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
42.252.210.1
Last Usable IP
42.252.210.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (42.252.210.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 42.252.210.127 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 126 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 42.252.210.0/25
Network Address 42.252.210.0
Broadcast Address 42.252.210.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class A
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 42.252.210.1
Last Usable IP 42.252.210.126
Network (Hex) 0x2AFCD200
Broadcast (Hex) 0x2AFCD27F
Address Type Public / Globally Routable

Binary Representation

Network Address
00101010.11111100.11010010 00101010.11111100.11010010.00000000
Subnet Mask
11111111.11111111.11111111.10000000

The first 25 bits (1s in the mask) identify the network. The remaining 7 bits identify hosts within the network.

Split into Equal Subnets

Split 42.252.210.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 42.252.210.0/26 42.252.210.0 42.252.210.1 42.252.210.62 42.252.210.63 62
2 42.252.210.64/26 42.252.210.64 42.252.210.65 42.252.210.126 42.252.210.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

42.252.210.0 net
42.252.210.1
42.252.210.2
42.252.210.3
42.252.210.4
42.252.210.5
42.252.210.6
42.252.210.7
42.252.210.8
42.252.210.9
42.252.210.10
42.252.210.11
42.252.210.12
42.252.210.13
42.252.210.14
42.252.210.15
… 112 more IPs …

/25 Subnet Reference

Total IPs 128
Usable Hosts 126
Subnet Mask 255.255.255.128
Wildcard 0.0.0.127

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