View

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
	129.246.0.0/17	Institute for Defense Analyses
	129.246.101.0/24	Institute for Defense Analyses
	129.246.128.0/17	Institute for Defense Analyses
	129.246.218.0/24	Institute for Defense Analyses
	129.246.225.0/24	Institute for Defense Analyses
	129.246.228.0/24	Institute for Defense Analyses
	129.246.229.0/24	Institute for Defense Analyses
	129.246.230.0/24	Institute for Defense Analyses
	129.246.243.0/24	Institute for Defense Analyses
	129.246.250.0/24	Institute for Defense Analyses
	129.246.251.0/24	Institute for Defense Analyses
	129.246.253.0/24	Institute for Defense Analyses
	129.246.254.0/24	Institute for Defense Analyses
	164.217.0.0/17	Institute for Defense Analyses
	164.217.128.0/17	Institute for Defense Analyses
	164.217.225.0/24	Institute for Defense Analyses
	164.217.228.0/24	Institute for Defense Analyses
	164.217.253.0/24	Institute for Defense Analyses
	164.217.254.0/24	Institute for Defense Analyses
	198.97.168.0/24	Institute for Defense Analyses
	198.133.241.0/24	Institute for Defense Analyses

---

Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation (disabled due to size) Policy vigorous_gauss Policy bold_edison Policy peaceful_hypatia

Chart Display Options

Display links using non straight lines

Prefixes in selected policy

Load all prefixes in policy

---

How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✘
	AS22925	Allied Telecom Group, LLC	✔	✘
	AS3356	Lumen (Level 3)	✔	✘

---

Peers

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✘
	AS22925	Allied Telecom Group, LLC	✔	✘
	AS3356	Lumen (Level 3)	✔	✘

ASHandle:       AS166
OrgID:          IDA-2-Z
ASName:         IDA-AS
ASNumber:       166
RegDate:        1988-03-29
Updated:        2022-05-20
Source:         ARIN



OrgID:          IDA-2-Z
OrgName:        Institute for Defense Analyses
CanAllocate:    
Street:         730 E Glebe Rd
City:           Alexandria
State/Prov:     VA
Country:        US
PostalCode:     22305
RegDate:        2010-02-01
Updated:        2025-11-17
OrgAdminHandle: CMU49-ARIN
OrgTechHandle:  CMU49-ARIN
OrgTechHandle:  TPHID-ARIN
OrgAbuseHandle: CMU49-ARIN
OrgNOCHandle:   TPHID-ARIN
OrgRoutingHandle:   TPHID-ARIN
Source:         ARIN





OrgAdminHandle:       CMU49-ARIN
OrgAdminName:         Chris Murphy
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        CMU49-ARIN
OrgTechName:          Chris Murphy
# Email removed, Log into bgp.tools to see whois emails


OrgTechHandle:        TPHID-ARIN
OrgTechName:           TPH61-IDA
# Email removed, Log into bgp.tools to see whois emails


OrgAbuseHandle:       CMU49-ARIN
OrgAbuseName:         Chris Murphy
# Email removed, Log into bgp.tools to see whois emails


OrgNOCHandle:         TPHID-ARIN
OrgNOCName:            TPH61-IDA
# Email removed, Log into bgp.tools to see whois emails


OrgRoutingHandle:     TPHID-ARIN
OrgRoutingName:        TPH61-IDA
# Email removed, Log into bgp.tools to see whois emails

Last Update: 2025-12-24T03:29:14Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RADB	as-allied_telecom	74
RADB	as-windstream-cust	2135
RADB	as-hurricane	24736
LEVEL3	as-lumen-customers-asns	10695
RIPE	as-transroute-spec	19683