Home ASN LookupAS9824

AS9824 JTCL-JP-AS JCOM Co., Ltd.

🇯🇵

Org handle: ORG-JTCL1-AP

JCOM Co., Ltd.

APNICallocated

Announced Prefixes (BGP)

297total

235 IPv462 IPv6

IPv4 Addresses

Allocated (RIR)5.1M

Announced (BGP)10.4M

IPv6 Addresses

Allocated (RIR)7.1×10²⁹

Announced (BGP)1.3×10³⁰

Prefix Limit (IPv4)

5,000

Prefix Limit (IPv6)

200

Country

🇯🇵 JP

RIR

APNIC

Status

allocated

Allocated

2000-01-12

Announced Prefixes

(BGP)297

Prefix	RPKI	IRR	Last Seen
27.136.0.0/13	Valid	Other IRR	2026-10-11
27.136.0.0/17	Valid	Other IRR	2026-10-11
27.136.128.0/17	Valid	Other IRR	2026-10-11
27.137.0.0/16	Valid	Other IRR	2026-10-11
27.138.0.0/16	Valid	Other IRR	2026-10-11
27.139.0.0/16	Valid	Other IRR	2026-10-11
27.140.0.0/16	Valid	Other IRR	2026-10-11
27.141.0.0/16	Valid	Other IRR	2026-10-11
27.142.0.0/17	Valid	Other IRR	2026-10-11
27.142.128.0/17	Valid	Other IRR	2026-10-11

1-10 of 297

1 / 30

Allocated Prefixes

(RIR)38

Prefix	Country	RIR	Status
27.136.0.0/13	🇯🇵 JP	APNIC	allocated
42.144.0.0/13	🇯🇵 JP	APNIC	allocated
59.166.0.0/16	🇯🇵 JP	APNIC	allocated
59.168.0.0/14	🇯🇵 JP	APNIC	allocated
60.58.0.0/15	🇯🇵 JP	APNIC	allocated
60.60.0.0/15	🇯🇵 JP	APNIC	allocated
60.62.0.0/16	🇯🇵 JP	APNIC	assigned
60.62.0.0/17	🇯🇵 JP	APNIC	allocated
61.21.0.0/16	🇯🇵 JP	APNIC	allocated
61.22.0.0/15	🇯🇵 JP	APNIC	assigned

1-10 of 38

1 / 4

All 297 announced prefixes of AS9824 →

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS9824 hands its own prefixes to: transit providers, or peers at an exchange.

AS2497Internet Initiative Japan157
AS2516KDDI CORPORATION140

Downstreams (18)

Networks whose own prefixes AS9824 passes on: usually its customers.

AS4721JCOM163
AS9617JCOM118
AS18283Chupicom60
AS9378JCOM36
AS9614JCOM Marketing25
AS18134JCOM24
AS23788JCOM21
AS18136JCOM18
AS24276JCOM6
AS23808TOSHIMA CABLE NETWORK4
AS7524ITEC HANKYU HANSHIN3
AS45675JCOM3
AS7686JCOM2
AS23635CRCCMedia2
AS23790JCOM2
AS131937Joetsu Cable Vision2
AS24290Heart Network1
AS45690Nihon Central TV1

Other adjacent networks (1)

Adjacent to AS9824 in the transit part of AS paths: peers, providers or customers.

AS17961Mitene Internet4

ASPA

No ASPA

External Links

APNIC Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
ASPA explainedWhy AS9824 should publish an ASPA object
IPv4 transfers in the APNIC regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/9824

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/9824" | jq