Network report

Who holds an IP address, prefix or AS number, how it is routed (origin AS, RPKI, IRR), its reverse DNS, blocklist listings and PeeringDB record, with what to fix first.

AS18046 · 0 seconds ago

curl -s "https://thenetworkery.com/api/v1/network-report?query=AS18046"

JSON Docs

Warning: AS18046 (DONGFONG-TW) announces 113 IPv4 and 2 IPv6 prefixes. 2 warnings

AS page	AS18046
Holder	DONGFONG-TW - DongFong Technology Co. Ltd.
Allocation	APNIC, Taiwan (TW), allocated 2001-11-09
Prefixes (IPv4 / IPv6)	113 / 2
RPKI valid	98% (113 / 115)
Upstreams and peers	22
Peering policy	Open

What to fix

Warning
2 of 115 announced prefixes have no ROA (RPKI not found): 82.41.128.0/20, 103.197.172.0/22.

Without a ROA, networks cannot tell your routes from a hijack.

Fix: Create a ROA for each at your RIR portal, with origin AS18046 and a max length equal to the prefix length:
```
82.41.128.0/20 AS18046 max-length /20
103.197.172.0/22 AS18046 max-length /22
```
Open in RPKI / ROA validator Guide
Warning
17 of 115 announced prefixes have no IRR route object: 61.65.236.0/24, 103.176.50.0/24, 43.248.16.0/23, 101.0.228.0/22, 2401:1780:1316::/48 (+12).

Many networks build their prefix filters from IRR data; without route objects some of them drop the routes.

Fix: Create route (IPv4) and route6 (IPv6) objects with origin AS18046 in your RIR’s IRR database (or RADB).
```
route: 61.65.236.0/24
origin: AS18046

route: 103.176.50.0/24
origin: AS18046

route: 43.248.16.0/23
origin: AS18046
```
Open in ASN & BGP prefix lookup

Checks

Routing and RPKI 2 of 115 announced prefixes have no ROA (RPKI not found): 82.41.128.0/20, 103.197.172.0/22.

Pass: AS18046 announces 113 IPv4 and 2 IPv6 prefixes.
Warning: 2 of 115 announced prefixes have no ROA (RPKI not found): 82.41.128.0/20, 103.197.172.0/22.
Info: 113 of 115 announced prefixes are RPKI valid.
Warning: 17 of 115 announced prefixes have no IRR route object: 61.65.236.0/24, 103.176.50.0/24, 43.248.16.0/23, 101.0.228.0/22, 2401:1780:1316::/48 (+12).
Info: 22 upstreams and peers, 15 downstream networks seen.

Holder	DONGFONG-TW - DongFong Technology Co. Ltd.
IPv4 prefixes	113
IPv6 prefixes	2
RPKI	113 valid · 2 not found
Without IRR route object	17
Downstream networks	15

Routes to fix

Prefix	RPKI
82.41.128.0/20	No ROA
103.197.172.0/22	No ROA

Upstreams and peers seen to the left 22

AS9002 RETN AS4637 Telstra (International) AS23764 CTGNet AS6939 Hurricane Electric AS17408 Chief AS21859 Zenlayer Edge Cloud Network AS4780 New Century InfoComm Tech Co.,Ltd. AS174 Cogent Communications, Inc. AS35280 F5 Inc. AS24482 SG.GS AS8966 Etisalat AS137409 Global Secure Layer

Announced prefixes 115

43.248.16.0/22 43.248.16.0/23 43.248.18.0/23 61.65.208.0/20 61.65.232.0/21 61.65.236.0/24 61.65.237.0/24 61.65.238.0/24 61.65.239.0/24 61.67.32.0/20 78.105.0.0/18 78.105.64.0/19 82.41.128.0/20 87.80.0.0/16 101.0.224.0/22 101.0.228.0/22 101.0.228.0/23 101.0.232.0/21 101.0.232.0/24 101.3.192.0/20 101.3.208.0/22 103.126.88.0/22 103.126.88.0/23 103.126.88.0/24 103.126.89.0/24 103.126.90.0/24 103.126.181.0/24 103.126.182.0/23 103.126.252.0/22 103.126.252.0/23 103.126.254.0/23 103.176.50.0/23 103.176.50.0/24 103.176.51.0/24 103.197.172.0/22 103.233.68.0/22 103.233.68.0/23 103.233.70.0/23 103.234.224.0/22 103.234.225.0/24 103.234.226.0/24 103.234.227.0/24 116.50.32.0/20 116.50.32.0/21 116.50.32.0/24 116.50.33.0/24 116.50.34.0/24 116.50.35.0/24 116.50.36.0/24 116.50.37.0/24 116.50.38.0/23 116.50.39.0/24 116.50.40.0/21 116.50.41.0/24 116.50.43.0/24 116.50.46.0/23 119.15.192.0/22 119.15.192.0/23 119.15.194.0/23 119.15.208.0/21 119.15.208.0/23 119.15.210.0/23 119.15.210.0/24 119.15.224.0/19 119.15.224.0/21 119.15.232.0/21 119.15.240.0/21 119.15.248.0/21 121.50.176.0/20 121.50.176.0/21 121.50.176.0/22 121.50.176.0/24 121.50.177.0/24 121.50.179.0/24 121.50.181.0/24 121.50.183.0/24 121.50.184.0/21 121.50.184.0/22 121.50.190.0/24 121.50.191.0/24 122.200.152.0/24 122.200.153.0/24 122.200.154.0/23 122.200.154.0/24 122.200.155.0/24 122.200.156.0/22 122.200.156.0/24 122.200.158.0/24 122.200.159.0/24 150.107.56.0/22 150.116.16.0/20 150.116.16.0/23 150.116.18.0/23 150.116.20.0/23 150.116.22.0/23 150.116.24.0/23 150.116.26.0/23 150.116.28.0/23 150.116.30.0/23 150.129.36.0/22

Showing the first 100.

Source: RIPEstat (RIPE NCC RIS, Routinator, IRR); AS names: Team Cymru

Open in ASN & BGP prefix lookup

Registration Found at rdap.apnic.net.

Pass: Found at rdap.apnic.net.

Name	DONGFONG-TW
Handle	AS18046
Range	AS18046
Country	TW
Status	active
Registered	2008-09-04T06:40:32Z
Last changed	2025-11-06T09:08:57Z
Abuse contact	ix@dongfong.com.tw

Allocation

Registry (RIR)	APNIC
Country	Taiwan (TW)
Delegated on	2001-11-09
Status	Allocated
Delegated range	AS18040 – AS18049

Source: RIR delegation data, updated daily. The country is where the range was registered, not necessarily where it is used.

Contacts

Role	Name	Email
technical, administrative	Tiger Shen	tiger@dongfong.com.tw
abuse	IRT-DONGFONG-TW	ix@dongfong.com.tw

Source: https://rdap.apnic.net/autnum/18046. Registration data from rdap.apnic.net, shown under its terms of use (terms): not for marketing or bulk collection.

Open in WHOIS / RDAP lookup

PeeringDB AS18046 is in PeeringDB as DongFong Technology Co. Ltd..

Pass: AS18046 is in PeeringDB as DongFong Technology Co. Ltd..
Info: Peering policy: Open.
Info: Present at 7 internet exchanges with 7 ports (432G in total).

Network	DongFong Technology Co. Ltd. (DFT(AS18046))
AS number	AS18046
Type	Cable/DSL/ISP, Asia Pacific
Website	http://www.dongfong.com.tw
IRR as-set	AS-DFT-TRANSIT
Prefixes (IPv4 / IPv6)	200 / 40
Traffic	20-50Gbps, Balanced
Peering policy	Open
Locations	Not Required
Ratio required	No
Contracts	Not Required
Looking glass	http://www.tpix.net.tw
Last updated	2026-04-08

Contacts

Technical	noc@dongfong.com.tw ix@dongfong.com.tw

Source: PeeringDB. Results are cached for an hour.

Open in PeeringDB lookup