色姑娘综合网久久一个色综合亚洲色综合欧美天天日天天操,久草草福利在线播放,人妻免费视频,www.4438xx1.comEIA下调今年原油需求预期 国际油价上涨动力不足

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︰

  “雲氏的僕婦經常斗毆嗎?”   雖然皇帝還不至于下手去搶奪,對劉徹來說,壞印象種下了,就很難就一個好的未來。色姑娘综合网久久   他就像一頭真正的龍——喜怒無常,且暴虐殘忍。一个色综合亚洲色综合   霍光被劉據輕易地就從金球上扯下來了,然而,一柄漆黑的勺子卻掛在金球上,一黑一黃,極為顯眼。   事實證明,大漢的博士都有一副好身板,至少,狄山在跑了幾里地之後,還有力氣拖著不明所以的劉據坐車出宮。欧美天天日天天操,久草草福利在线播放,人妻免费视频,www.4438xx1.com   雲瑯隨著曹襄指引的方向看過去,只見一個披著簑衣騎著驢子的人從山間小路上緩緩地過來。
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