国产精品高清视频免费99re8在这里只有精品2久久久这里只有精品293岁女童横穿马路 老汉出手相救被撞亡却要担责

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):

發布時間︰

  太宰的眼神變得凌厲看著雲瑯的眼楮道︰“你對皇權沒有半分的敬意。” 国产精品高清视频免费   “您嫌棄婢子。”99re8在这里只有精品2   卓姬搖頭道︰“絕無可能。”   “哈哈哈,老秦人慷慨赴死,死不旋踵,他既然給自己冠上老秦人之名,就不容他不出戰。”久久久这里只有精品29   這個少年人能跟臭烘烘的鐵匠蹲在打鐵爐邊上愉快的交談一整天,甚至掄鐵錘打鐵,也能跟那個胖胖的侍女說說笑笑,經常惹得那個侍女笑的前仰後合。
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