ASN lookup
ASN lookup: enter an IP address أو من an AS number such as AS15169 إلى see the network operator وthe prefixes it announces.
البيانات comes من RIPEstat وis requested when you press the button.
حول ASN lookup
ASN lookup: enter an IP address أو من an AS number such as AS15169 إلى see the network operator وthe prefixes it announces.
جزء من قسم «البيانات والشبكات» في SmartCalcy. تعمل في متصفحك دون حساب، وتستخدم عملتك ووحداتك (غيّرها من أعلى الصفحة)، وتعطي تقديرات للعلم فقط، فتحقق من الإرشادات الرسمية قبل الاعتماد على نتيجة.
كيفية استخدام ASN lookup
ما الذي يحسبه ومتى تستخدمه
Finds the autonomous system number (ASN) من the network that announces an IP address وor the holder وannounced address ranges من an AS number you already know. An ASN identifies one network on the internet, such as a provider, a cloud company أو a university.
طريقة الاستخدام خطوة بخطوة
- Enter an IP address, أو an AS الرقم such as AS15169.
- Press “Look up ASN”.
- Read the AS الرقم وholder وwhether it هو visible في global routing.
- Check the list من الannounced prefixes undernea.
معنى كل مُدخل
- IP address أو AS الرقم – An IPv4 أو IPv6 address, أو الan AS number wi أو without the “AS” prefix.
كيف تقرأ النتائج
- AS الرقم وholder – The network’s الرقم وthe organisation that holds it.
- Announced – Whether the الشبكة هو currently visible في the global routing table.
- Prefixes announced – The count من IPv4 وIPv6 address ranges the network advertises, with a sample من them.
الصيغة
من لا calculation. Networks use the BGP protocol إلى announce which address ranges (prefixes) they علبة reach, للقطعة under an AS الرقم. RIPEstat reads these announcements من routing collectors around the world.
مثال محلول
Looking up 8.8.8.8 returns AS15169, held by Google LLC, which announces 8.8.8.0/24 among many other ranges.
الافتراضات والحدود
- البيانات comes من RIPEstat وis requested when you press the button.
- Only the first part من a long prefix list هو shown.
- من An address that nobody announces cannot be mapped إلى a الشبكة.
أخطاء شائعة
- Entering an AS الرقم with a typo أو extra text, such as “AS 15169 Google”.
- Assuming one organisation has one ASN. Large companies often operate several.
- Reading the ASN as a location. It identifies a الشبكة, which علبة span many countries.
الأسئلة الشائعة
What هو an ASN?
An autonomous system الرقم هو من a unique number given إلى a network that has its own routing policy on the internet.
What هو a prefix?
A المدى من من IP addresses written في CIDR form, such as 8.8.8.0/24, that a network announces إلى the rest من the internet.
Why does an address have لا ASN?
The address may be private, unallocated أو not currently announced by any الشبكة.
Is this the same as IP WHOIS?
لا. WHOIS shows the registry record. ASN lookup shows which الشبكة actually announces the address في routing.