AV综合亚洲综合网久草在线福利资源站快讯:语音技术板块走强 歌尔股份涨超8%

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, 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):


  可惜,一無所獲。   “對啊,毛辣子是一種綠色的毛毛蟲,絨毛沾在人體上就會痛癢難當,傷口處如同火灼傷一般。這東西以前沒人在意,是你父親跟何公公打賭的時候弄來的,你武功蓋世的何公公,就沾了一下,兩天一夜之後疼痛才稍有減少,是你耶耶準備拿來坑人的,你要它做什麼?”AV综合   一個眉目青澀的少年戰戰兢兢的站出來道︰“是弟子整理的。”亚洲综合网   霍光鄭重的拱手施禮道︰“多謝!”   “阿音想要燒,我就幫她燒,她不喜歡南山坡上有青草萌發。”久草在线福利资源站   “軍中不吃外食,這是一條鐵律,長史一定要銘記于心。”
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


Regional Internet Registry Creation

Technical Documentation