丁香五月综亚洲五月天丁香婷婷播五月色五开开心五月江浙沪台风雨将至 武汉南昌高温“称王”

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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  “那倒不是,問題是你大師兄是那種大發善心的人嗎?如果此事跟他無關,即便是看到這家伙倒在水中,估計也會視而不見的。”   而雲哲跟藍天之間的婚事,其實在更多層面上來說——政治因素超過了愛情本身。丁香五月综亚洲   雲瑯冷笑道︰“你打得過靠山婦?”五月天丁香婷婷   “那是自然。”   至于為什麼會被突襲,可憐的馬合羅居然說是為了那些財物……播五月色五开开心五月   雲瑯笑道︰“你李敢叔叔出關作戰,你大師兄將會奉調入京,陛下既然要看我們舍不舍得放棄涼州,那就做給他看好了。”
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