40217 DACSNX-ISP, US
Adjacency: 9 Upstream: 3 Downstream: 6
Upstream Adjacent AS list
AS6939 HURRICANE, US
AS174 COGENT-174, US
AS6461 ZAYO-6461, US
Downstream Adjacent AS list
AS203939 MOSAIC-DATA-SERVICES Mosaic Data Services, US
AS30622 VENABLE, US
AS16557 COLOSOLUTIONS, US
AS19528 MPDCOL, US
AS7124 -Reserved AS-, ZZ
AS61961 NELLICUS-NETWORKS-, US
Rank AS Type Originate Addr Space (pfx) Transit Addr space (pfx) Description 49993 AS40217 ORG+TRN Originate: 512 /23.00 Transit: 256 /24.00 DACSNX-ISP, US
Aggregation Suggestions
Filter: Aggregates, Specifics
This report does not take into account conditions local to each origin AS in terms of policy or traffic engineering requirements, so this is an approximate guideline as to aggregation possibilities.
Rank AS AS Name Current Wthdw Aggte Annce Redctn % 22734 AS40217 DACSNX-ISP, US 2 2 1 1 1 50.00% Prefix AS Path Aggregation Suggestion 192.209.18.0/23 6939 40217 + Announce - aggregate of 192.209.18.0/24 (6939 40217) and 192.209.19.0/24 (6939 40217) 192.209.18.0/24 6939 40217 - Withdrawn - aggregated with 192.209.19.0/24 (6939 40217) 192.209.19.0/24 6939 40217 - Withdrawn - aggregated with 192.209.18.0/24 (6939 40217)
Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.
AS40217 1 More Specifics 4 Total Advertisements TSPG-DIA, US
66.103.144.0/24 66.103.144.0/21
Prefixes added and withdrawn by this origin AS in the past 7 days.
+ 66.103.144.0/24 Announced
whois: 402603
IANA has recorded AS40217 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS40217\n
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ASNumber: 40217
ASName: DACSNX-LEGACY
ASHandle: AS40217
RegDate: 2006-08-18
Updated: 2026-03-18
Ref: https://rdap.arin.net/registry/autnum/40217
OrgName: DACS-NX
OrgId: DACSN
Address: 12401 Prosperity Drive
City: Silver Spring
StateProv: MD
PostalCode: 20904
Country: US
RegDate: 2025-01-18
Updated: 2025-01-24
Ref: https://rdap.arin.net/registry/entity/DACSN
OrgRoutingHandle: NOC11724-ARIN
OrgRoutingName: Network Operations Center
OrgRoutingPhone: +1-443-749-5471
OrgRoutingEmail: noc@dacs-nx.com
OrgRoutingRef: https://rdap.arin.net/registry/entity/NOC11724-ARIN
OrgDNSHandle: NOC11724-ARIN
OrgDNSName: Network Operations Center
OrgDNSPhone: +1-443-749-5471
OrgDNSEmail: noc@dacs-nx.com
OrgDNSRef: https://rdap.arin.net/registry/entity/NOC11724-ARIN
OrgTechHandle: NOC11724-ARIN
OrgTechName: Network Operations Center
OrgTechPhone: +1-443-749-5471
OrgTechEmail: noc@dacs-nx.com
OrgTechRef: https://rdap.arin.net/registry/entity/NOC11724-ARIN
OrgAbuseHandle: NOC11724-ARIN
OrgAbuseName: Network Operations Center
OrgAbusePhone: +1-443-749-5471
OrgAbuseEmail: noc@dacs-nx.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/NOC11724-ARIN
OrgNOCHandle: NOC11724-ARIN
OrgNOCName: Network Operations Center
OrgNOCPhone: +1-443-749-5471
OrgNOCEmail: noc@dacs-nx.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC11724-ARIN
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#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
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# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
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