久久爱免费频在线看3久草在在线新兔费观看首页久草片免费福利资源站内蒙古农信社原理事长致系统内400多人涉案

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︰

  雲瑯道︰“虎無傷人意,人有害虎心,某家身居高位,嫉妒者眾,不得不提防爾。” 久久爱免费频在线看3   “不一樣,那是因為小光自知前程遠大,想要走好每一步路,不敢出差錯。”久草在在线新兔费观看首页   阿嬌噗嗤一聲笑了起來,握著劉徹的手道︰“您也太小心了,雲瑯要是敢對您用秦惠王戲弄蜀王的法子,臣妾就太佩服雲瑯的膽量了。”   而且,春日里東風漸起,會引起大氣發生很大的變化,這個時候也是荒漠中風沙最大的時候,傳說中的黑沙暴往往就出現在這個時候。久草片免费福利资源站   劉徹終于說話了,聲音出奇的低落。
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