iamroot.tech
Toggle navigation
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
All tools
Page nav
Page nav
iamroot.tech
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
CTRL+D to bookmark
Add to homescreen
×
Tap the 'Share button' at the bottom of the screen:
Scroll down the list, and select 'Add to Home Screen':
Tap the menu icon (3 dots - upper right-hand corner):
and select 'Add to homescreen'.:
ASN database
You may find these sub-pages interesting as well:
Top ASN's by country
Directory of +1.200 verified looking glass url's
NEW: ASN database statistics
Related tools
DNS lookup
DNS lookup / nslookup / DIG of DNS records. An online tool for DNS lookups. By default recursive lookups querying the authoritative name servers. Lookups on specific DNS resolvers are also possible. Additionally, it will look up secondary records and output a full log of what was done on a technical level.
WHOIS / RDAP lookup
Perform WHOIS and/or RDAP lookups on domains, IP addresses, and ASNs. Will output all available technical info, contact info, etc.
Reverse DNS
Perform reverse DNS (rDNS/PTR) lookups of any IP.
CIDR calculator
beta
IP to CIDR calculation tool with subnet info. The reverse, CIDR ranges to IP addresses, is also possible. Last but not least, it includes a tool for refactoring groups of IPs, domain names, and/or other CIDR ranges.
What is my IPv4 and IPv6?
Check your own IP - both IPv4 and IPv6. Works as a connectivity test as well.
GeoIP location
Online tool GeoIP location of any IP and/or domain.
World map, day/night + local time
beta
Beautiful day/night map of the world, with markup of all major cities including local date and time.
Top ASN's from Japan
Top 3 of Japan
AS17676
SoftBank Corp.
303 peers, +43M IPv4 adresses and 3,4E+32 IPv6 adresses.
AS2516
KDDI
302 peers, +18M IPv4 adresses and 5,1E+31 IPv6 adresses.
AS4713
NTT Communications Corporation
131 peers, +28M IPv4 adresses and 8,1E+31 IPv6 adresses.
Top 20 by count of peers
Country
ASN
Organization
Peers
IX'es
IPv4
IPv6
Japan
AS151420
Rapid-Fire-y
486
5
512
3,1E+26
Japan
AS59105
Home NOC Operators Group
421
-
2.048
7,9E+28
Japan
AS2497
JPNIC-2Byte-ASBLOCK-AP
336
3
+3M
3,3E+29
Japan
AS17676
SoftBank Corp.
303
8
+43M
3,4E+32
Japan
AS2516
KDDI
302
11
+18M
5,1E+31
Japan
AS2500
WIDE-BB
263
3
+131K
7,9E+28
Japan
AS2518
BIGLOBE
188
9
+3M
7,1E+29
Japan
AS2907
for assignment to JPNIC members
138
5
+8M
1,6E+29
Japan
AS9605
NTT DOCOMO, INC.
133
6
+2M
1,1E+29
Japan
AS4713
NTT Communications Corporation
131
3
+28M
8,1E+31
Japan
AS7522
STNet, Incorporated
129
7
+594K
7,9E+28
Japan
AS131958
Tama Cable Network Co.,Ltd.
125
5
+26K
7,9E+28
Japan
AS9354
Community Network Center Inc.
110
5
+180K
7,9E+28
Japan
AS7679
QTnet,Inc.
107
8
+696K
7,9E+28
Japan
AS9370
SAKURA Internet Inc.
100
1
+340K
1,3E+30
Japan
AS2519
VECTANT
92
9
+1M
1,9E+30
Japan
AS18283
Chupicom Inc.
91
2
+21K
7,9E+28
Japan
AS7500
WIDE Project
89
22
768
7,9E+28
Japan
AS54415
WIZ K.K.
89
4
1.024
6,0E+24
Japan
AS59110
BPS Inc.
80
1
1.024
7,9E+28
Top 10 by count of IPv4
Country
ASN
Organization
Peers
IX'es
IPv4
IPv6
Japan
AS17676
SoftBank Corp.
303
8
+43M
3,4E+32
Japan
AS4713
NTT Communications Corporation
131
3
+28M
8,1E+31
Japan
AS2516
KDDI
302
11
+18M
5,1E+31
Japan
AS2907
for assignment to JPNIC members
138
5
+8M
1,6E+29
Japan
AS17506
ARTERIA Networks Corporation
2
3
+5M
7,9E+28
Japan
AS9824
JCOM Co., Ltd.
25
4
+4M
7,1E+29
Japan
AS2497
JPNIC-2Byte-ASBLOCK-AP
336
3
+3M
3,3E+29
Japan
AS2527
So-net
25
7
+3M
2,6E+30
Japan
AS2518
BIGLOBE
188
9
+3M
7,1E+29
Japan
AS17511
OPTAGE Inc.
55
9
+3M
7,9E+28
Top 10 by count of IPv6
Country
ASN
Organization
Peers
IX'es
IPv4
IPv6
Japan
AS17676
SoftBank Corp.
303
8
+43M
3,4E+32
Japan
AS9595
NTT-ME Corporation
25
7
+1M
8,1E+31
Japan
AS4713
NTT Communications Corporation
131
3
+28M
8,1E+31
Japan
AS2516
KDDI
302
11
+18M
5,1E+31
Japan
AS138384
Rakuten Mobile, Inc.
30
2
+420K
2,0E+31
Japan
AS2527
So-net
25
7
+3M
2,6E+30
Japan
AS2519
VECTANT
92
9
+1M
1,9E+30
Japan
AS55391
INTERNET MULTIFEED CO.
15
-
+67K
1,3E+30
Japan
AS55392
INTERNET MULTIFEED CO.
6
-
+67K
1,3E+30
Japan
AS9370
SAKURA Internet Inc.
100
1
+340K
1,3E+30