超碰综合大香蕉综合伊人在线综合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):

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  董仲舒的目光最後落在雲瑯臉上道︰“西北理工可否入駐太學,專門教授農學,工學,以及格物學?”   天黑的時候,褚狼押送著蜀中來的茶葉進入了雲氏。超碰综合   衛皇後連忙道︰“沒有,沒有,信是右拾遺狄山送來的,說據兒在滇國病了。”大香蕉综合   陛下還有很長的一段歲月要過呢,因此上,他對年齡比較大,實力比較大的太子是有天然上的警惕的。   雲瑯看著眼前這個蠢萌蠢萌的公孫敖,笑著搖搖頭道︰“那是神靈才能做到的事情。”伊人在线综合   霍光搖頭道︰“不成的,滇池上一次已經被大漢甲士屠戮過一次,堪稱尸橫遍野,這一次,郭解下手更是凶殘,滿滇池里漂的都是發臭的尸體,一個不小心,引發瘟疫,我們這群人休想有一人活著走出大山。”
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