彩票 注册送28彩票创意图彩票中奖号国务院首发社保降费成绩单 划转国资全速推进

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):

發布時間︰

  衛伉吃了一口甜瓜道︰“除死無大難!”   匆匆吃完了飯,就丟下碗筷跑的不見蹤影。彩票 注册送28   再過一會,那個惡心的大巫師就要過來了。彩票创意图   木筏的載重量並不高……這讓雲瑯有些失望。   “不用了。”甦稚指指腦袋道︰“該見識的都見識了,該做的實驗都做了,胡人,羌人,漢人,匈奴如果去除外形上的不同,本質是一樣,構造也是一樣,沒什麼好稀奇的。我現在回去,就是想問藥婆婆很多事情,我發現我們以前猜測的很多事情都是不正確的。”彩票中奖号   這是一個默契的過程,很久以前,雲氏,長門宮,以及長公主三方就形成了一個奇妙的有錢一起賺,有難一起當這樣的默契。
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