天天色综合天天情色网天天色综合网嘀嗒副总裁李跃军:将做好城市出租车智慧运营服务商

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︰

  當別的孩子飯盤里飯菜葷素搭配的恰到好處,大快朵頤的時候,霍二只能吃煮的青菜。   霍光若有所悟的點點頭道︰“言之有理。”天天色综合   雲瑯微微嘆息一聲,不著痕跡的趁著曹襄三人說笑的時候將紙條丟進了火盆。天天情色网   霍去病是私生子,那又如何,朕還是用他,讓他成為大漢的榮光——冠軍侯!   雲瑯……哼哼哼,前秦余孽又如何,大秦帝國就跟始皇帝一般,們已經被我的祖先徹底的埋進了黃土中。天天色综合网   不大功夫,霍光就回來了,見金日面色慘白的躺在病床上,嘴唇干涸,就用小小的茶壺往他嘴里灌水,一邊灌水一邊道︰“又是一個為了前途不要命的人啊。”
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