日夜撸他也撸夜夜撸名侦探柯南日夜撸影音先锋播放器日夜撸“创世纪”号:测量月球磁场 追寻月球起源

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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  只有被兄弟守著,他才敢入睡……   話說完,又看看默不作聲的公孫敖嘿嘿笑道︰“大統領這時候沒工夫理睬我們,多拿點也沒問題。”日夜撸他也撸夜夜撸   “記得把人都帶回來,安置在受降城,我們這里的自己人實在是太少了,哪怕是那些被抓去的邊民跟匈奴女人有了孩子,只要邊民願意也記著一起帶回來,我不嫌棄人多,只怕人少。”名侦探柯南日夜撸   何愁有自然是要坐馬車的,並且熱情的邀請曹襄一起乘坐……   “這就是你說的山門?”影音先锋播放器日夜撸   物資車馬在陽陵邑集結,他帶著親兵家將來到了羽林衛的營地,不管他喜不喜歡見公孫敖,這一關必須要走。
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