IPv6 Planning

Typical allocation: per-site /48, LANs /64, point-to-point links /127, loopback addresses /128.
Keep a hierarchical scheme: org → region → site → function (LAN/WAN/loopback).
Document assignments with names and purpose; reserve growth blocks when possible.

Allocation overview

Legend:

• 2% • 1 children

2001:db8:::/48

• 2% • 1 children

2001:db8:1:::/48

• 2% • 1 children

2001:db8:2:::/48

• 2% • 1 children

2001:db8:3:::/48

• 2% • 1 children

2001:db8:4:::/48

• 2% • 1 children

2001:db8:5:::/48

• 2% • 1 children

2001:db8:6:::/48

• 2% • 1 children

2001:db8:7:::/48

• 2% • 1 children

2001:db8:8:::/48

• 2% • 1 children

2001:db8:9:::/48

• 2% • 1 children

2001:db8:a:::/48

• 2% • 1 children

2001:db8:b:::/48

• 2% • 1 children

2001:db8:c:::/48

• 2% • 1 children

2001:db8:d:::/48

• 2% • 1 children

2001:db8:e:::/48

• 2% • 1 children

2001:db8:f:::/48

• 2% • 1 children

2001:db8:10:::/48

• 2% • 1 children

2001:db8:11:::/48

• 2% • 1 children

2001:db8:12:::/48

• 2% • 1 children

2001:db8:13:::/48

• 2% • 1 children

2001:db8:14:::/48

• 2% • 1 children

2001:db8:15:::/48

• 2% • 1 children

2001:db8:16:::/48

• 2% • 1 children

2001:db8:17:::/48

• 2% • 1 children

2001:db8:18:::/48

• 2% • 1 children

2001:db8:19:::/48

• 2% • 1 children

2001:db8:1a:::/48

• 2% • 1 children

2001:db8:1b:::/48

• 2% • 1 children

2001:db8:1c:::/48

• 2% • 1 children

2001:db8:1d:::/48

• 2% • 1 children

2001:db8:1e:::/48

• 2% • 1 children

2001:db8:1f:::/48

• 2% • 1 children

2001:db8:20:::/48

• 2% • 1 children

2001:db8:21:::/48

• 2% • 1 children

2001:db8:22:::/48

• 2% • 1 children

2001:db8:23:::/48

• 2% • 1 children

2001:db8:24:::/48

• 2% • 1 children

2001:db8:25:::/48

• 2% • 1 children

2001:db8:26:::/48

• 2% • 1 children

2001:db8:27:::/48

• 2% • 1 children

2001:db8:28:::/48

• 2% • 1 children

2001:db8:29:::/48

• 2% • 1 children

2001:db8:2a:::/48

• 2% • 1 children

2001:db8:2b:::/48

• 2% • 1 children

2001:db8:2c:::/48

• 2% • 1 children

2001:db8:2d:::/48

• 2% • 1 children

2001:db8:2e:::/48

• 2% • 1 children

2001:db8:2f:::/48

• 2% • 1 children

2001:db8:30:::/48

• 2% • 1 children

2001:db8:31:::/48

• 2% • 1 children

2001:db8:32:::/48

• 2% • 1 children

2001:db8:33:::/48

• 2% • 1 children

2001:db8:34:::/48

• 2% • 1 children

2001:db8:35:::/48

• 2% • 1 children

2001:db8:36:::/48

• 2% • 1 children

2001:db8:37:::/48

• 2% • 1 children

2001:db8:38:::/48

• 2% • 1 children

2001:db8:39:::/48

• 2% • 1 children

2001:db8:3a:::/48

• 2% • 1 children

2001:db8:3b:::/48

• 2% • 1 children

2001:db8:3c:::/48

• 2% • 1 children

2001:db8:3d:::/48

• 2% • 1 children

2001:db8:3e:::/48

• 2% • 1 children

2001:db8:3f:::/48

Supernet

IPv6 address

Prefix

Subnet to prefix

Total subnets: 65,536

Rows

Page

Subnets (/ 48)

Subnet	Network	First	Last	Total	Actions
2001:db8:::/48	2001:db8:::	2001:db8:::	2001:db8:0:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:1:::/48	2001:db8:1:::	2001:db8:1:::	2001:db8:1:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:2:::/48	2001:db8:2:::	2001:db8:2:::	2001:db8:2:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:3:::/48	2001:db8:3:::	2001:db8:3:::	2001:db8:3:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:4:::/48	2001:db8:4:::	2001:db8:4:::	2001:db8:4:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:5:::/48	2001:db8:5:::	2001:db8:5:::	2001:db8:5:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:6:::/48	2001:db8:6:::	2001:db8:6:::	2001:db8:6:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:7:::/48	2001:db8:7:::	2001:db8:7:::	2001:db8:7:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:8:::/48	2001:db8:8:::	2001:db8:8:::	2001:db8:8:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:9:::/48	2001:db8:9:::	2001:db8:9:::	2001:db8:9:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:a:::/48	2001:db8:a:::	2001:db8:a:::	2001:db8:a:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:b:::/48	2001:db8:b:::	2001:db8:b:::	2001:db8:b:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:c:::/48	2001:db8:c:::	2001:db8:c:::	2001:db8:c:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:d:::/48	2001:db8:d:::	2001:db8:d:::	2001:db8:d:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:e:::/48	2001:db8:e:::	2001:db8:e:::	2001:db8:e:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:f:::/48	2001:db8:f:::	2001:db8:f:::	2001:db8:f:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:10:::/48	2001:db8:10:::	2001:db8:10:::	2001:db8:10:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:11:::/48	2001:db8:11:::	2001:db8:11:::	2001:db8:11:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:12:::/48	2001:db8:12:::	2001:db8:12:::	2001:db8:12:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:13:::/48	2001:db8:13:::	2001:db8:13:::	2001:db8:13:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:14:::/48	2001:db8:14:::	2001:db8:14:::	2001:db8:14:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:15:::/48	2001:db8:15:::	2001:db8:15:::	2001:db8:15:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:16:::/48	2001:db8:16:::	2001:db8:16:::	2001:db8:16:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:17:::/48	2001:db8:17:::	2001:db8:17:::	2001:db8:17:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:18:::/48	2001:db8:18:::	2001:db8:18:::	2001:db8:18:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:19:::/48	2001:db8:19:::	2001:db8:19:::	2001:db8:19:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:1a:::/48	2001:db8:1a:::	2001:db8:1a:::	2001:db8:1a:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:1b:::/48	2001:db8:1b:::	2001:db8:1b:::	2001:db8:1b:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:1c:::/48	2001:db8:1c:::	2001:db8:1c:::	2001:db8:1c:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:1d:::/48	2001:db8:1d:::	2001:db8:1d:::	2001:db8:1d:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:1e:::/48	2001:db8:1e:::	2001:db8:1e:::	2001:db8:1e:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:1f:::/48	2001:db8:1f:::	2001:db8:1f:::	2001:db8:1f:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:20:::/48	2001:db8:20:::	2001:db8:20:::	2001:db8:20:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:21:::/48	2001:db8:21:::	2001:db8:21:::	2001:db8:21:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:22:::/48	2001:db8:22:::	2001:db8:22:::	2001:db8:22:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:23:::/48	2001:db8:23:::	2001:db8:23:::	2001:db8:23:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:24:::/48	2001:db8:24:::	2001:db8:24:::	2001:db8:24:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:25:::/48	2001:db8:25:::	2001:db8:25:::	2001:db8:25:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:26:::/48	2001:db8:26:::	2001:db8:26:::	2001:db8:26:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:27:::/48	2001:db8:27:::	2001:db8:27:::	2001:db8:27:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:28:::/48	2001:db8:28:::	2001:db8:28:::	2001:db8:28:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:29:::/48	2001:db8:29:::	2001:db8:29:::	2001:db8:29:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:2a:::/48	2001:db8:2a:::	2001:db8:2a:::	2001:db8:2a:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:2b:::/48	2001:db8:2b:::	2001:db8:2b:::	2001:db8:2b:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:2c:::/48	2001:db8:2c:::	2001:db8:2c:::	2001:db8:2c:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:2d:::/48	2001:db8:2d:::	2001:db8:2d:::	2001:db8:2d:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:2e:::/48	2001:db8:2e:::	2001:db8:2e:::	2001:db8:2e:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:2f:::/48	2001:db8:2f:::	2001:db8:2f:::	2001:db8:2f:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:30:::/48	2001:db8:30:::	2001:db8:30:::	2001:db8:30:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:31:::/48	2001:db8:31:::	2001:db8:31:::	2001:db8:31:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:32:::/48	2001:db8:32:::	2001:db8:32:::	2001:db8:32:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:33:::/48	2001:db8:33:::	2001:db8:33:::	2001:db8:33:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:34:::/48	2001:db8:34:::	2001:db8:34:::	2001:db8:34:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:35:::/48	2001:db8:35:::	2001:db8:35:::	2001:db8:35:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:36:::/48	2001:db8:36:::	2001:db8:36:::	2001:db8:36:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:37:::/48	2001:db8:37:::	2001:db8:37:::	2001:db8:37:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:38:::/48	2001:db8:38:::	2001:db8:38:::	2001:db8:38:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:39:::/48	2001:db8:39:::	2001:db8:39:::	2001:db8:39:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:3a:::/48	2001:db8:3a:::	2001:db8:3a:::	2001:db8:3a:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:3b:::/48	2001:db8:3b:::	2001:db8:3b:::	2001:db8:3b:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:3c:::/48	2001:db8:3c:::	2001:db8:3c:::	2001:db8:3c:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:3d:::/48	2001:db8:3d:::	2001:db8:3d:::	2001:db8:3d:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:3e:::/48	2001:db8:3e:::	2001:db8:3e:::	2001:db8:3e:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to
2001:db8:3f:::/48	2001:db8:3f:::	2001:db8:3f:::	2001:db8:3f:ffff:ffff:ffff:ffff:ffff	1,208,925,819,614,629,174,706,176	to

Tip: Use /48 for sites and /64 for LANs. For point-to-point links consider /127; for loopback addresses use /128.

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