ASN lookup result for AS131596 TBC — network size, BGP routing and registration
IPv4 addresses
354,304
661 announced prefixes
IPv6 addresses
5.63 × 10²⁶
33 announced prefixes
BGP neighbours
…
CAIDA rank
#13,057
Customer cone 1 ASNs
Estimated users
618K
APNIC Labs estimate
RPKI
100% valid
0 invalid · 0 not covered
Average purity
90
45 sampled IPs
IXPs / facilities
3 / 1
Operator self-reported
History
How prefixes were announced and changed hands, registration changes, and outage or hijack incidents.
Loading routing history…
IP ranges
Currently announced prefixes with their RIR registration and geolocation.
| Prefix | RPKI | Registration | Geolocation | Addresses |
|---|---|---|---|---|
| 123.240.0.0/16 | Valid |  TBCOM-NETAPNIC | Taichung | 65,536 |
| 123.110.128.0/17 | Valid | TBCOM-NETAPNIC | Zhubei | 32,768 |
| 123.0.192.0/18 | Valid | TBCOM-NETAPNIC | Zhongli District | 16,384 |
| 123.110.0.0/18 | Valid | TBCOM-NETAPNIC | Taichung | 16,384 |
| 123.241.0.0/18 | Valid | TBCOM-NETAPNIC | Taichung | 16,384 |
| 59.102.224.0/19 | Valid | TBCOM-NETAPNIC | Taiwan | 8,192 |
| 61.58.160.0/19 | Valid | TBC-TWAPNIC | Taoyuan | 8,192 |
| 61.63.96.0/19 | Valid | TBC-TWAPNIC | Zhongli District | 8,192 |
| 123.110.64.0/19 | Valid | TBCOM-NETAPNIC | Miaoli | 8,192 |
| 123.241.64.0/19 | Valid | TBCOM-NETAPNIC | Zhubei | 8,192 |
| 123.241.160.0/19 | Valid | TBCOM-NETAPNIC | Zhongli District | 8,192 |
| 123.241.192.0/19 | Valid | TBCOM-NETAPNIC | Zhongli District | 8,192 |
| 123.110.96.0/20 | Valid | TBCOM-NETAPNIC | Miaoli | 4,096 |
| 123.110.112.0/20 | Valid | TBCOM-NETAPNIC | Miaoli | 4,096 |
| 123.241.96.0/20 | Valid | TBCOM-NETAPNIC | Miaoli | 4,096 |
| 123.241.112.0/20 | Valid | TBCOM-NETAPNIC | Miaoli | 4,096 |
| 123.241.128.0/20 | Valid | TBCOM-NETAPNIC | New Taipei City | 4,096 |
| 123.241.240.0/20 | Valid | TBCOM-NETAPNIC | Taichung | 4,096 |
| 59.102.136.0/21 | Valid | TBCOM-NETAPNIC | Zhongli District | 2,048 |
| 59.102.144.0/21 | Valid | TBCOM-NETAPNIC | Zhongli District | 2,048 |
Only the first 500 prefixes are listed; address counts and geography use all prefixes.
/24 block profile
One square per /24: colour shows the risk type, shade how many addresses are flagged, stripes mark datacenter blocks. Click a square to see all 256 addresses.
/24s with data 52 / 1,384 （4%） · flagged 23
Hover a square for its numbers; click to see all 256 addresses.
Each prefix shows its 64 /24s with the most data. Built daily from lookups, neighbour sampling, public lists and block screening.
IP reputation
IPs from this network that CleanIP has analysed: purity, abuse reports and the riskiest /24 blocks.
Purity distribution
0.24%
Share of IPv4 reported or blocklisted
848
Listed IPs
45
Analysed IPs
Riskiest /24 blocks
| /24 block | Flagged | Analysed |
|---|---|---|
| 116.241.197.0/24 | 1 | 2 |
| 61.57.105.0/24 | 1 | 1 |
| 61.63.100.0/24 | 1 | 1 |
Flagged = VPN, proxy, Tor or purity below 50. Samples come from user lookups and neighbour sampling, not every address in this network.
Geography
Where this network’s IPv4 addresses are located.
- Taiwan100.0%
- Scope
- Single country
- In registered country
- 100.0%
Estimated by sampling IPv4 ranges against a geolocation database.
Datacenter Presence
WHOIS record
The registry’s record for this AS number: holder, status, dates and contacts.
Related networks
Other ASNs registered in the same country with the same network type.
- AS3462Chunghwa Telecom Co., Ltd.ISP
- AS4780Digital United Inc.ISP
- AS38841kbro CO. Ltd.ISP
- AS24158Taiwan Mobile Co., Ltd.ISP
- AS17421Data Communication Business Group,ISP
- AS9674Far EastTone Telecommunication Co., Ltd.ISP
- AS9416Hoshin Multimedia Center Inc.ISP
- AS18049Taiwan Infrastructure Network TechnologieISP
- AS9919New Century InfoComm Tech Co., Ltd.ISP
- AS18429Extra-Lan Technologies Co., LTDISP
Sources
Where the information on this page comes from and when it was updated.
| Information | Source | Updated |
|---|---|---|
| Registered country | RIR daily delegation statistics | 2026-10-20 |
| Registered address & allocation date | RIR registration data (RDAP) | 2026-10-09 |
| Organization & company country | AS-to-organization data | 2026-10-21 |
| Network type | CleanIP ASN canon | 2026-10-20 |
| Exchanges & facilities | Operator self-reported interconnection data | 2026-10-21 |
| Announced prefixes & BGP neighbours | Public BGP routing data | 2026-10-22 |
| IPv4 geography | Geolocation database | — |
| RPKI validation | RPKI ROA validation data | 2026-10-22 |
| Rank & customer cone | CAIDA AS Rank | 2026-10-01 |
| Estimated users (APNIC) | APNIC Labs user estimates | 2026-10-19 |
| Network tags | Public routing data community tags | 2026-10-21 |
| IP reputation | CleanIP lookups and neighbour sampling | — |
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