39.151.29.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address

39.151.29.0

Broadcast Address

39.151.29.127

Subnet Mask

255.255.255.128

Usable Hosts

126

First Usable IP

39.151.29.1

Last Usable IP

39.151.29.126

Total IPs

128

Prefix Length

/25

Network address — the base address of the block (39.151.29.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 39.151.29.127 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 mask — 255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation	39.151.29.0/25
Network Address	39.151.29.0
Broadcast Address	39.151.29.127
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	39.151.29.1
Last Usable IP	39.151.29.126
Network (Hex)	0x27971D00
Broadcast (Hex)	0x27971D7F
Address Type	Public / Globally Routable

Binary Representation

Network Address

00100111.10010111.00011101 00100111.10010111.00011101.00000000

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 39.151.29.0/25 into 2 equal /26 subnets (62 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	39.151.29.0/26	39.151.29.0	39.151.29.1	39.151.29.62	39.151.29.63	62
2	39.151.29.64/26	39.151.29.64	39.151.29.65	39.151.29.126	39.151.29.127	62

Split 39.151.29.0/25 into 4 equal /27 subnets (30 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	39.151.29.0/27	39.151.29.0	39.151.29.1	39.151.29.30	39.151.29.31	30
2	39.151.29.32/27	39.151.29.32	39.151.29.33	39.151.29.62	39.151.29.63	30
3	39.151.29.64/27	39.151.29.64	39.151.29.65	39.151.29.94	39.151.29.95	30
4	39.151.29.96/27	39.151.29.96	39.151.29.97	39.151.29.126	39.151.29.127	30

Split 39.151.29.0/25 into 8 equal /28 subnets (14 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	39.151.29.0/28	39.151.29.0	39.151.29.1	39.151.29.14	39.151.29.15	14
2	39.151.29.16/28	39.151.29.16	39.151.29.17	39.151.29.30	39.151.29.31	14
3	39.151.29.32/28	39.151.29.32	39.151.29.33	39.151.29.46	39.151.29.47	14
4	39.151.29.48/28	39.151.29.48	39.151.29.49	39.151.29.62	39.151.29.63	14
5	39.151.29.64/28	39.151.29.64	39.151.29.65	39.151.29.78	39.151.29.79	14
6	39.151.29.80/28	39.151.29.80	39.151.29.81	39.151.29.94	39.151.29.95	14
7	39.151.29.96/28	39.151.29.96	39.151.29.97	39.151.29.110	39.151.29.111	14
8	39.151.29.112/28	39.151.29.112	39.151.29.113	39.151.29.126	39.151.29.127	14

Split 39.151.29.0/25 into 16 equal /29 subnets (6 usable hosts each).

#	CIDR	Network	First Usable	Last Usable	Broadcast	Hosts
1	39.151.29.0/29	39.151.29.0	39.151.29.1	39.151.29.6	39.151.29.7	6
2	39.151.29.8/29	39.151.29.8	39.151.29.9	39.151.29.14	39.151.29.15	6
3	39.151.29.16/29	39.151.29.16	39.151.29.17	39.151.29.22	39.151.29.23	6
4	39.151.29.24/29	39.151.29.24	39.151.29.25	39.151.29.30	39.151.29.31	6
5	39.151.29.32/29	39.151.29.32	39.151.29.33	39.151.29.38	39.151.29.39	6
6	39.151.29.40/29	39.151.29.40	39.151.29.41	39.151.29.46	39.151.29.47	6
7	39.151.29.48/29	39.151.29.48	39.151.29.49	39.151.29.54	39.151.29.55	6
8	39.151.29.56/29	39.151.29.56	39.151.29.57	39.151.29.62	39.151.29.63	6
9	39.151.29.64/29	39.151.29.64	39.151.29.65	39.151.29.70	39.151.29.71	6
10	39.151.29.72/29	39.151.29.72	39.151.29.73	39.151.29.78	39.151.29.79	6
11	39.151.29.80/29	39.151.29.80	39.151.29.81	39.151.29.86	39.151.29.87	6
12	39.151.29.88/29	39.151.29.88	39.151.29.89	39.151.29.94	39.151.29.95	6
13	39.151.29.96/29	39.151.29.96	39.151.29.97	39.151.29.102	39.151.29.103	6
14	39.151.29.104/29	39.151.29.104	39.151.29.105	39.151.29.110	39.151.29.111	6
15	39.151.29.112/29	39.151.29.112	39.151.29.113	39.151.29.118	39.151.29.119	6
16	39.151.29.120/29	39.151.29.120	39.151.29.121	39.151.29.126	39.151.29.127	6

IP Address Sample

Showing first 16 of 128 total IPs.

39.151.29.0 net

39.151.29.1

39.151.29.2

39.151.29.3

39.151.29.4

39.151.29.5

39.151.29.6

39.151.29.7

39.151.29.8

39.151.29.9

39.151.29.10

39.151.29.11

39.151.29.12

39.151.29.13

39.151.29.14

39.151.29.15

… 112 more IPs …

/25 Subnet Reference

Total IPs 128

Usable Hosts 126

Subnet Mask 255.255.255.128

Wildcard 0.0.0.127

Full /25 reference →

Related Ranges

Parent /24 block 39.151.29.0/24 Sibling /25 block 39.151.29.128/25

Adjacent Prefix Sizes

/23 510 hosts /24 254 hosts /25 126 hosts /26 62 hosts /27 30 hosts