国产大香蕉伊人9伊人影院大香蕉在线75伊人大香蕉视频75再不怕"乌龙指" 交易员称质押回购已被设定区间限制

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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  弟弟們還小,幫不了他,當初,除他之外,任何高過車輪的男子不是被殺,就是被賣掉成奴隸了。   老虎不滿的叫了一聲,立刻就湊到雲瑯那邊去了。国产大香蕉伊人9   甦建,公孫敖沖著捆綁在柱子上的周鴻,張連二人嘿嘿一笑就率先走進了犬台宮。伊人影院大香蕉在线75   金日站在荷塘邊上,衣袂飄飄的樣子就連雲瑯都不得不贊嘆一聲好顏色。   今天,甦稚的話有些多,自從雲氏被老丈人暗算了一把之後,甦稚一般情況下就很少說話。伊人大香蕉视频75   濃煙緩緩地飄進了地道,濃煙的走勢很快,這說明這條地道有出口。
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