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	Prefix	Description
	156.40.53.0/24	National Institutes of Health
	156.40.98.0/23	National Institutes of Health
	165.112.0.0/21	National Institutes of Health
	165.112.0.0/20	National Institutes of Health
	165.112.194.0/23	National Institutes of Health

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Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation Policy nervous_robinson

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6

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Peers

	ASN	Description	IPv4	IPv6

Last Update: 2026-05-13T03:26:32Z UTC

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Member of the following AS-SETs

-	Member	ASN Count