奇米奇米网奇米色WHO正式宣布:刚果埃博拉疫情升级为全球卫生紧急事件

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):

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  蒙查咕噥一聲道︰“怎麼會有你們這樣的人。”   平叟滿意地笑道︰“他很聰慧,甚至可能看透了我們的計劃,最後還是落入彀中,這樣的人,你每欺負他一次,情義就會少一分。不過呢,雲瑯是一個很注重過程跟結果的人,夫人只要從一個孀婦的人性出發,去做一個孀婦應該做的,可能做的事情,他就會認為這是可以原諒的事情。”奇米   甦稚笑眯眯的進來了,手上還端著一壺茶,曹襄喝了一口茶水,然後就不懷好意的看著雲瑯。奇米网   雲瑯笑道︰“誰傻,誰聰明,要過幾年才能知道。”   “漢皇殺了你全家?”蒙查很好奇。奇米色   “我覺得她打我一頓可能比較好。”
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