天天射天天操天天好逼港澳办主任在香港局势座谈会上说了这么一番话

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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  大部分的動物在腦袋被砍掉之後,生命也就終結了,只有鬼這種東西似乎是一個列外。   雲瑯听得出來,霍光對他處理彭春的手段不是很贊成。天天射   “奪嫡嗎?”劉徹疲憊的捏捏眉心。天天操   甦稚吩咐之後,一個看護婦就趕緊應承下來,幾人合力將任安被綁縛的身體松開,從石床上抬下來放在擔架上,抬著出了手術室。   田詹遙指牛羊成群的荒原又道︰“這一帶先放牧牛羊,等牛羊的糞便讓這片土地變得肥沃了,就輪到我門開墾了。可惜,人手不足,我們只是佔據了河谷地,這里暫時還顧不上。”天天好逼   宋喬生孩子的時候雲瑯在外邊,甦稚生孩子的時候雲瑯也不在家,卓姬生雲音的時候,雲瑯根本就不知道。
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