青青视频网手机版青青青免费观看依人青青青在线观看无视特朗普政府警告 法国批准对美国科技公司征税3%

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︰

  “這個不成,牛肉粥涼了之後就不好喝了。”   倒是雲哲拉著董仲舒的袖子,一副擔心的模樣很好地詮釋了雲氏良好的家教。青青视频网   老宮女見長平的一張臉如同冰封一般冷峻,就嘆口氣,將長平拖起來,希望她能丟下手里的事情去院子里走走。手机版青青青免费观看   “我沒有什麼好失去的!祖宗的陵寢總要保全吧?”   長公主府侍衛首領董成率領一彪人馬立刻離開,一炷香之後,身著勁裝的長平公主也離開了長安城。依人青青青在线观看   雲瑯點頭道︰“沒錯,是一種病,這種病主要表現在,越是親近的人,越是容易被她忽視。她覺得自己最親近的人,一定是最了解她,最理解她的人,所以啊,她就不在乎親近之人的感受,反正你能理解是吧?”
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