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.
Result
AS38254, Pang-Wei Tsai
Last update of data:
02-05-2024 15:51 UTC
ASN:
AS38254 (ITLAB-AS-AP)
Country:
TW - Taiwan (Asia)
Org.:
Pang-Wei Tsai
https://itlab.cc
https://connect.itlab.cc/
Stats:
Peers
14
IX'es
5
Prefixes
3
IPv4
512
IPv6
1,2E+24
Contact:
Pang-Wei Tsai
EE Dept., No.1, University Rd., East Dist., Tainan, Taiwan
TW
+886-6-2757575
History
Date
Peers
IX'es
Prefixes
IPv4
IPv6
Before 14-12-2023
15
5
3
512
1,2E+24
14-12-2023
-1
-
-
-
-
11-01-2024
-1
-
-
-
-
08-02-2024
-1
-
-
-
-
07-03-2024
+2
-
-
-
-
04-04-2024
-1
-
-
-
-
02-05-2024
+1
-
-
-
-
Current
14
5
3
512
1,2E+24
Peers
Country
Relationship
ASN
Organization
Peers
Prefix'es
Hong Kong
Upstream
AS138997
Eons Data Communications Limited
60
42
Japan
Upstream
AS59105
Home NOC Operators Group
421
5
Japan
Peer
AS7660
Asia Pacific Advanced Network - Japan
37
4
Taiwan
Upstream
AS7539
National Center for High-performance Computing
35
8
Taiwan
Upstream
AS18041
Taiwan Digital Streaming Co.
66
19
Taiwan
Upstream
AS134823
Sky Digital Co., Ltd.
502
23
Taiwan
Peer
AS9267
Pang-Wei Tsai
1
2
Taiwan
Peer
AS17408
AboveNet Communications Taiwan Co., Ltd
129
127
Taiwan
Peer
AS57401
TSAI, PANG-WEI
33
7
Taiwan
Peer
AS131149
Yuan-Jhen Info., Co., Ltd
27
8
Taiwan
Downstream
AS211622
TSAI, PANG-WEI
15
3
United States
Upstream
AS6939
Hurricane Electric LLC
10.632
262
United States
Upstream
AS20473
The Constant Company, LLC
1.241
1.198
Upstream
AS945
August Internet
1.268
75
Internet eXchange (IX) connections
Country
City
IX name
Port speed
Members
Taiwan
Tainan
FOX
10 Gb
7
Taiwan
Taipei City
STUIX
10 Gb
93
United States
Fremont
Lambda-IX
1 Gb
26
United States
Fremont, Portland, Flagstaff
ARIX
1 Gb
17
United States
North Kansas City
GPC Missouri
1 Gb
65
Announced (uniq) prefixes
Country
ASN
Announced prefix
Description
Size
United States
AS38254
44.31.69.0/24
Pang-Wei Tsai
256
Taiwan
AS38254
103.167.250.0/24
Internet Technology Laboratory
256
Country
ASN
Announced prefix
Description
Size
Taiwan
AS38254
2001:df6:c480::/48
Pang-Wei Tsai
1,2E+24
Log
000
+000
Parse input (ASN)
000
+000
Search database for 'AS38254'
003
+003
1 ASN's found
003
+000
Done
003
+000
Load details of AS38254
012
+009
3 prefixes found
021
+009
14 peers found
026
+005
5 IX members found (5 connections)
029
+003
2 links loaded, 2 verified
031
+002
7 historical items loaded
031
+000
Done