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If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	157.14.0.0/23	TCP Inc.
	157.14.4.0/22	Early registration addresses
	157.14.8.0/21	TCP Inc.
	157.14.16.0/22	TCP Inc.
	157.14.24.0/21	TCP Inc.
	157.14.48.0/21	TCP Inc.
	157.14.80.0/23	TCP Inc.
	157.14.128.0/22	TCP Inc.
	157.14.214.0/23	TCP Inc.
	157.14.250.0/23	TCP Inc.
	192.244.203.0/24	Science Create INC
	202.241.143.0/24	TCP Inc.
	202.241.157.0/24	TCP Inc.
	202.241.177.0/24	TCP Inc.
	210.134.224.0/19	Express Communications Inc.

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS2519	ARTERIA Networks Corporation	✔	✘
	AS10015	Cyber Wave Japan Co., Ltd.	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS2519	ARTERIA Networks Corporation	✔	✘
	AS10015	Cyber Wave Japan Co., Ltd.	✔	✘

[ JPNIC database provides information regarding IP address and ASN. Its use   ]
[ is restricted to network administration purposes. For further information,  ]
[ use 'whois -h whois.nic.ad.jp help'. To only display English output,        ]
[ add '/e' at the end of command, e.g. 'whois -h whois.nic.ad.jp xxx/e'.      ]

Autonomous System Information:
a. [AS Number]                  2512
b. [AS Name]                    TCP-NET
g. [Organization]               TCP Inc.
m. [Administrative Contact]     RY003JP
n. [Technical Contact]          TS036JP
n. [Technical Contact]          YK1322JP
q. [Abuse]                      
o. [IMPORT]                     from AS2519 100 accept ANY
o. [IMPORT]                     from AS4716 100 accept ANY
o. [IMPORT]                     from AS4713 100 accept ANY
p. [EXPORT]                     to AS2519 announce AS2512
p. [EXPORT]                     to AS4716 announce AS2512
p. [EXPORT]                     to AS4713 announce AS2512
[Assigned Date]                 
[Last Update]                   2005/03/10 12:39:11(JST)

Last Update: 2026-06-04T04:21:37Z UTC

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Member of the following AS-SETs

-	Member
RADB	as-iij
RADB	as2497:as-iij6
RADB	as-tokai
JPIRR	as-pwd
JPIRR	as-infosphere-v6
JPIRR	as-mesh-customer:as10010
JPIRR	as-9351
RADB	as-vectant
LEVEL3	as-level3-origins-na
RADB	as-iij6
RADB	as-kdd
RADB	as-mesh-customer:as10010
JPIRR	as-tokai
NTTCOM	as-vcectant
RADB	as-pacnet-downstream-jp
ARIN	as-xo-b
JPIRR	as-bbix-t
JPIRR	as-mesh-customer:as9354
RADB	as-kdddmpeer
RADB	as-pacnet-customer-proxy-register
RADB	as-gigainfra
RADB	as-pwd
JPIRR	as-iij
RADB	as-kddcustomer2
NTTCOM	as-infosphere-v6
JPIRR	as-infosphere
JPIRR	as-mesh-customer:as9351
JPIRR	as-10015
JPIRR	as-iij6
JPIRR	as-gigainfra
JPIRR	as2497:as-iij6
NTTCOM	as-cnci
RADB	as-cnci
JPIRR	as-cnci
JPIRR	as2497:as-iij
APNIC	as-ctgjp-tokai
RADB	as-kddi6
RADB	as-telstra-intl-customers
NTTCOM	as-infosphere
RADB	as-bbix-t
RADB	as2497:as-iij
RADB	as-mesh-customer:as9351