大陆明星综合AV综合亚洲综合网幸运星武磊!西甲生涯至今不败 4战1胜3平

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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  這個消息完全出乎了雲瑯的預料,他以為自己已經很好地照顧了董仲舒的心情,特意將西北理工傳播的時間向後推遲了好幾年。   “孩子無恙吧?”雲瑯立刻就緊張了起來。大陆明星综合   每日來造紙作坊等著拉紙張的商賈依舊絡繹不絕,侏儒連捷發現的那幾個不對勁的活計,這些天也老老實實的在干活,沒有任何搞事情的苗頭。AV综合   阿嬌跪坐在蒲團上,顯得身形非常挺拔。   如果在雲瑯沒有燒掉雲氏醫館之前,或許還會有人認為雲瑯這是在虛張聲勢。亚洲综合网   雲瑯嘆口氣道︰“很沒意思的事情,雲某自忖已經對大漢國鞠躬盡瘁了,陛下依舊覺得我有異心,不把我死死的攥在手心里就不甘心。貴人您也知道,我就是一個山中野人,無拘無束慣了,最是受不得約束啊。”
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