日夜撸在线观看日夜撸百度影音播放日夜撸在线播放被污染困扰的四川攀枝花钒钛高新区:居民不敢开窗

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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  雲瑯笑道︰“就算是你成了璇璣城城主,到了最後這個位置還不是要留給我西北理工門下?”   “你們可以用莫須有的罪責讓張湯百口難辯,如今,我不過是故智重施,有何不可。”日夜撸在线观看   “羊群不能多帶,只要三頭公羊,十頭母羊,羊羔一個不要,戰馬也只要母馬,還要有馬奶的那種,這些年我們家的羊群變大了,可以跟夸可欺他們換母馬……”日夜撸百度影音播放   朱買臣見雲瑯不斷地擦手,眼中浮現一絲怒意道︰“黃氏應該不會這樣想!”日夜撸在线播放   陳昆眼睜睜的看著雲氏家將打跑了一干差役,看看一臉渴盼的二師弟梁贊,無奈的擺擺手道︰“你們去吧,我留在這里,全部走了,雲氏無法向官府交差。”
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