人人澡超碰碰中文字幕人人天天夜夜日日狠狠久久人人97超碰特斯拉上半年在华销售14.7亿美元 同比增41.8%

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, 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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  在劉徹的金鑾殿上,即便曹襄這種至親也會變成君臣關系,在那里,只講利害,不講人情。   大長秋笑道︰“分冷豬肉的時候,你就知道利害了。”人人澡超碰碰中文字幕   都說雲從龍,虎從風,卻不知這位皇後才出現在我們的眼中,就已經讓我們進退兩難。人人天天夜夜日日狠狠   衛子夫溫柔地看著自己的兒子道︰“喜歡就去,如果可能,長門宮你也應該去看看,不要用皇長子劉據的身份,用霍光,雲音之友的名義去。”   那就是察言觀色,從雲瑯闡述這些話的音容笑貌,舉止言談來判斷這些話的真偽。久久人人97超碰   “知道啊,他們如果餓了,可以來雲氏做工,我一定不會讓他們挨餓的。”
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