丁香五月天缴情在线色五月婷婷色爱区综合五月色爱区众安公告:陈劲卸任总经理兼联席CEO 继续任执行董事

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):

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  貴霜帝國?   東郭咸陽一干人倒霉的時候,無鹽氏為什麼能夠安穩如山?按理說,他們干的事情,要比東郭咸陽他們的干的事情更加的惡劣。丁香五月天缴情在线   “隋越,命無鹽氏把金球運進未央宮,同時,命丞相李蔡,廷尉趙禹,王溫舒一並進宮。朕要看看朕的兒子是不是真的有奇謀妙策可以破解無鹽氏的鬼蜮伎倆。”色五月婷婷   貴霜帝國?   可就是這樣一個人,所有人都要小心翼翼的恭維他,贊揚他,尊敬他,崇拜他……如果如果不這樣做,日子根本就沒法子過下去。色爱区综合五月色爱区   指著泥塑軍陣道︰“該給他們上顏色了,土黃色的泥巴顏色很難看,將軍背後跟胸前的絲綢結花,需要鮮艷一些。就用朱砂,你覺得怎麼樣?”
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