体育彩票大乐透走势图带坐标新浪彩票排列三走势图500万彩票定位走势图网约车再起波澜 “国家队”T3出行是否会变“敢死队”

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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  匈奴人的數量在迅速的變多,他們的營地布置也發生了變化,由一個營地變成了兩個,一東,一西,關閉了陽關通往西域的道路。   所以,雲瑯拒絕了護羌校尉這個官職。体育彩票大乐透走势图带坐标   自從小時候跟霍去病打架,打贏了霍去病之後,雲瑯就一直自稱霍去病的身手不如他。新浪彩票排列三走势图   雲瑯嘆息一聲道︰“早走早好,我不信大行令想不到這其中的利害關系。”   隋越終于走到了掖庭宮,在吃了一頓他已經好長時間沒有吃過的豬食之後,他就從一間破舊的房子里找到了一條破舊的毯子,鋪在青石板上,再次抬眼看看天上的太陽,無聲的笑了一聲。500万彩票定位走势图   有很多好馬,馬出汗帶血,它的祖先是天馬的兒子。
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