中国大乐透体育彩票走势图彩票大乐透走势图100期 m.baidu.com彩票大乐透走势图100期走势 tubiao.17mcp.com孟加拉国洪水已致75人死亡 超过600万人撤离家园

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︰

  如果按照彈章的內容來治雲瑯的罪過,至少需要五馬分尸才能宣告正義勝利,如果再把雲氏滿門抄斬,那將是正義的壓倒性的勝利。   “好吧,我贊成齊王娶主父偃的女兒總成了吧?”中国大乐透体育彩票走势图   因此,曹襄,李敢非常的喪氣,只有霍去病的抱著豁達的心胸在看這件事。彩票大乐透走势图100期 m.baidu.com   一個胖胖的家伙從對面的人群中走出來,掏出一個繡花錢袋,翻轉過來抖了一下,兩枚金燦燦的金錢,就從錢袋里掉落,就听這個家伙得意的道︰“這就夠了吧,哈哈哈,看的小爺鼻子都酸了。”   任安感慨的對司馬遷道︰“原來是真的。”彩票大乐透走势图100期走势 tubiao.17mcp.com   任安好奇的看了一遍地下的熱水渠笑道︰“就地取材,耗費不多。”
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