AS9505 Taiwan Internet Gateway 🇹🇼 TW

Chunghwa Telecom Co., Ltd.. Announcing 45 prefixes, seen at the RIS collectors.

IPv4 prefixes

31,744 (124 × /24)

IPv6 prefixes

2.1 × /32

Upstreams

transit providers observed

Peers

settlement-free adjacencies

Downstreams

transit customers observed

Customer cone

20,545

ASes reachable through it

Registry and operator data

AS number: AS9505
Name: Taiwan Internet Gateway
Organisation: TWGate
Country: 🇹🇼 TW
RIR: APNIC
Allocated: 1999-03-24
Network type: NSP
Traffic levels: 100-200Gbps
Scope: Global
Peering policy: Open
IRR as-set: AS-TWIG
Website: http://www.cht.com.tw
PeeringDB: net/791
Exchanges: 11
Facilities: 9

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

45 valid (100.0%) 0 invalid (0.0%) 0 no ROA (0.0%)

Upstreams

Networks seen providing transit to this one

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS3356 Lumen (Level 3)	🇺🇸 US	70,619	2,076	2,802	CAIDA
AS1299 Arelion (fka. Telia Carrier)	🇸🇪 SE	68,583	132	5,632	CAIDA
AS174 Cogent Communications, LLC	🇺🇸 US	65,707	4,016	3,273	CAIDA
AS2914 NTT America, Inc.	🇺🇸 US	55,120	1,616	95	CAIDA
AS213241 TECHIT.BE SRL	🇧🇪 BE	0	14	34	inferred

Peers

Adjacencies that look settlement-free rather than transit

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS6453 TATA Communications (America) Inc	🇺🇸 US	56,037	124	14	CAIDA
AS6939 Hurricane Electric LLC	🇺🇸 US	53,561	235	1,124	CAIDA
AS3491 PCCW Global (HK) Ltd.	🇭🇰 HK	51,022	532	116	CAIDA
AS9002 RETN Limited	🇬🇧 GB	50,558	19	953	CAIDA
AS7473 Singapore Telecommunications Ltd	🇸🇬 SG	43,563	46	23	CAIDA
AS8966 Etisalat (E&)	🇦🇪 AE	43,217	49	11	CAIDA
AS23764 China Telecom Global	🇭🇰 HK	43,049	184	1	CAIDA
AS4637 Telstra International Limited	🇭🇰 HK	36,745	666	379	CAIDA
AS20485 TransTeleCom JSC	🇷🇺 RU	27,395	85	400	CAIDA
AS33891 Core-Backbone GmbH	🇩🇪 DE	24,725	1	14	CAIDA
AS9930 TIME dotCom Bhd	🇲🇾 MY	21,340	75	88	CAIDA
AS31500 Global Network Management Inc	🇦🇬 AG	21,005	40	56	CAIDA
AS6327 Shaw Communications	🇨🇦 CA	18,785	3,843	1	CAIDA
AS4766 Korea Telecom	🇰🇷 KR	7,837	2,709	51	CAIDA
AS40065 CNSERVERS LLC	🇺🇸 US	7,248	509	11	CAIDA
AS9680 HiNet Service Center in U.S.A	🇹🇼 TW	7,241	1	3	CAIDA
AS3462 HiNet (Chunghwa Telecom)	🇹🇼 TW	7,240	249	8	CAIDA
AS18403 FPT Telecom Company	🇻🇳 VN	6,537	4,679	2	CAIDA
AS4800 PT Aplikanusa Lintasarta	🇮🇩 ID	5,843	719	1	CAIDA
AS8359 MTS PJSC	🇷🇺 RU	5,720	446	1	CAIDA
AS24482 SG.GS	🇸🇬 SG	4,776	45	243	CAIDA
AS140867 International gateway co., Ltd	🇹🇭 TH	3,707	5	1	CAIDA
AS132602 Bangladesh Submarine Cable Company Limited (BSCCL)	🇧🇩 BD	3,161	11	1	CAIDA
AS45903 CMC Telecom Infrastructure Company	🇻🇳 VN	397	356	1	CAIDA
AS10133 Chief Telecom Inc.	🇹🇼 TW	361	0	1	CAIDA
AS17639 Converge ICT Solutions Inc.	🇵🇭 PH	268	567	488	CAIDA
AS2856 British Telecommunications	🇬🇧 GB	152	543	1	CAIDA
AS58955 Bangmod Enterprise Co., Ltd.	🇹🇭 TH	102	56	43	CAIDA
AS9902 NTC Neocom	🇰🇭 KH	97	75	42	CAIDA
AS979 NetLab Global	🇺🇸 US	97	584	37	CAIDA
AS9145 EWE TEL GmbH	🇩🇪 DE	76	52	1	CAIDA
AS132280 Symphony Communication (Thailand) PCL.	🇹🇭 TH	71	193	18	CAIDA
AS4621 UniNet Thailand	🇹🇭 TH	66	79	7	CAIDA
AS38001 NewMedia Express Pte. Ltd.	🇸🇬 SG	27	68	265	CAIDA
AS23930 VITRO INC.	🇵🇭 PH	23	90	1	CAIDA
AS7693 KSC Commercial Internet Co. Ltd.	🇹🇭 TH	21	91	2	CAIDA
AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED	🇬🇧 GB	19	52	3	CAIDA
AS48185 team.blue NV	🇧🇪 BE	14	1	1,188	CAIDA
AS133543 DTAC TriNet Co.,Ltd.	🇹🇭 TH	0	2	16	CAIDA
AS23932 Internet Service Provider	🇹🇭 TH	0	57	10	CAIDA
AS7481 TWIX Route Servers	🇹🇼 TW	0	0	9	CAIDA
AS133424 Donghwa Telecom Co., Limited	🇭🇰 HK	0	2	2	CAIDA
AS133880 The Thai Red Cross Society	🇹🇭 TH	0	12	1	CAIDA
AS135529 Interlink Telecom Public Company Limited	🇹🇭 TH	0	1	1	CAIDA

Downstreams

Networks this one appears to provide transit to

Network	Country	Cone	IPv4 prefixes	Paths	Source
AS4780 Digital United Inc.	🇹🇼 TW	19,741	1,550	282	CAIDA
AS17408 AboveNet Communications Taiwan	🇹🇼 TW	7,162	106	988	CAIDA
AS9304 HGC Global Communications Limited	🇭🇰 HK	6,024	1,974	254	CAIDA
AS45430 SBN-IIG/AWN-IIG transit provider	🇹🇭 TH	3,988	57	301	CAIDA
AS9924 Taiwan Fixed Network, Telco and Network Service Provider.	🇹🇼 TW	1,749	629	4,650	CAIDA
AS45250 Vocom International Telecommunications AP Area	🇹🇼 TW	167	41	696	CAIDA
AS138997 Eons Data Communications Limited	🇭🇰 HK	91	74	24	inferred
AS9264 Academia Sinica	🇹🇼 TW	12	6	172	CAIDA
AS9416 KBT Co., LTD 4F., No.57, Dongxing Rd., Xinyi Dist., Taipei City 110, Taiwan (R.O.C.)	🇹🇼 TW	6	79	522	CAIDA
AS18182 Sony Network Taiwan Limited	🇹🇼 TW	3	84	2,973	CAIDA
AS7533 Savecom International Inc.	🇹🇼 TW	3	0	1,834	CAIDA
AS7532 Gamania CloudForce	🇹🇼 TW	3	39	1,187	CAIDA
AS55547 WoodsDale Ventures INC	🇵🇭 PH	0	218	577	CAIDA
AS10126 Taiwan Internet Gateway	🇹🇼 TW	0	10	483	CAIDA
AS7478 Mackay Telecommunication Inc.	🇹🇼 TW	0	4	165	CAIDA
AS33717 HiNet (Chunghwa Telecom)	🇺🇸 US	0	21	103	CAIDA
AS18047 National Tsing-Hua University	🇹🇼 TW	0	2	80	CAIDA
AS131660 Data Communication Business Group,	🇹🇼 TW	0	5	74	CAIDA
AS17716 National Taiwan University	🇹🇼 TW	0	5	49	CAIDA
AS135140 Qun Ying Network Technology (Hong Kong) Co., Limited	🇭🇰 HK	0	7	40	CAIDA
AS18183 National Center for Research on Earthquake Engineering	🇹🇼 TW	0	5	33	CAIDA
AS11414 Nvidia Corporation	🇺🇸 US	0	53	23	CAIDA
AS131659 NETEASE	🇹🇼 TW	0	5	4	CAIDA

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.