五月婷婷俺也去开心五月丁香缴情深爱五月天五月天亚洲图片婷婷央行:人民币汇率由市场供求决定 不存在"汇率操纵"

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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第一七零章 雖敗猶榮   劉徹淡淡的道︰“雲瑯還不至于怯戰,卻害怕部屬犧牲,聰明人總是這樣,總想以最小的代價收獲更多的成果。卻不知有些事無法避免,無法退讓,今日你讓匈奴逃出生天,明日匈奴人就可能卷土重來。想在軍國大事上投機取巧,他想錯了。”五月婷婷俺也去开心   劉陵此次沿著陰山一路西進,走到陰山余脈狼山就停止了前進的步伐。五月丁香缴情深爱五月天   連捷坐在高大的椅子上,短小的雙腿懸空,不時地踢騰一下,身為雲氏的家臣,他是有資格直接跟少君對話的。   皇帝寢宮溫暖如春,玉門關外卻早已寒風刺骨。五月天亚洲图片婷婷   隋越覺得自己不是一個高貴人,吃一點美味的不太干淨的東西不打緊,于是,他一個人吃的非常愉快。
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