丁香五月缴情在线丁香五月天缴情在线色五月婷婷下周影响市场重要资讯前瞻

We are responsible for global coordination of the Internet Protocol addressing systems, as well as the Autonomous System Numbers used for routing Internet traffic.

Currently there are two types of Internet Protocol (IP) addresses in active use: IP version 4 (IPv4) and IP version 6 (IPv6). IPv4 was initially deployed on 1 January 1983 and is still the most commonly used version. IPv4 addresses are 32-bit numbers often expressed as 4 octets in “dotted decimal” notation (for example, 192.0.2.53). Deployment of the IPv6 protocol began in 1999. IPv6 addresses are 128-bit numbers and are conventionally expressed using hexadecimal strings (for example, 2001:0db8:582:ae33::29).

Both IPv4 and IPv6 addresses are generally assigned in a hierarchical manner. Users are assigned IP addresses by Internet service providers (ISPs). ISPs obtain allocations of IP addresses from a local Internet registry (LIR) or National Internet Registry (NIR), or from their appropriate Regional Internet Registry (RIR):

發布時間︰

  狗子笑道︰“您的目的不就在此麼?”   雲瑯大笑道︰“我今年只有二十六歲等的住。”丁香五月缴情在线   李敢的大黃弓弓力太強,被他的鐵桿羽箭射中的兔子基本上會碎掉,這樣的兔子是沒辦法吃的。丁香五月天缴情在线   雲瑯回頭笑道︰“放心,只要是屬于我的,我沒有不上心的。老子在這個天地間本來就沒有擁有太多的東西,一個都不準少的要照顧好。”   雲瑯笑道︰“西北理工門下的弟子只追隨我大漢帝國,不追隨某一個帝王。也唯有如此,才能真正的起到匡扶天下的重任。”色五月婷婷   雲瑯笑道︰“我正是此意!你們也小心,小光是一個聰慧的孩子,他會察覺的!”
Map of RIRs
RegistryArea Covered
AFRINICAfrica Region
APNICAsia/Pacific Region
ARINCanada, USA, and some Caribbean Islands
LACNICLatin America and some Caribbean Islands
RIPE NCCEurope, the Middle East, and Central Asia

Our primary role for IP addresses is to allocate pools of unallocated addresses to the RIRs according to their needs as described by global policy and to document protocol assignments made by the IETF. When an RIR requires more IP addresses for allocation or assignment within its region, we make an additional allocation to the RIR. We do not make allocations directly to ISPs or end users except in specific circumstances, such as allocations of multicast addresses or other protocol specific needs.

IP Address Allocations

Internet Protocol Version 4 (IPv4)

Internet Protocol Version 6 (IPv6)

Autonomous System Number Allocations

Procedures

Regional Internet Registry Creation

Technical Documentation