Report for 30710

Name

SPECT-19-AS - Spectrum Health, US

AS Adjacency Report

In the context of this report "Upstream" indicates that there is an adjacent AS that lines between the BGP table collection point (in this case at AS2.0) and the specified AS. Similarly, "Downstream" refers to an adjacent AS that lies beyond the specified AS. This upstream / downstream categorisation is strictly a description relative topology, and should not be confused with provider / customer / peer inter-AS relationships.

30710 SPECT-19-AS - Spectrum Health, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS26554         US-SIGNAL - US Signal Company, L.L.C., US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
1691  AS30710        ORIGIN  Originate:     140288 /14.90  Transit:          0 /0.00  SPECT-19-AS - Spectrum Health, 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       %
 8466 AS30710       SPECT-19-AS - Spectrum Health, US                  8      6      1      3      5  62.50%


  Prefix               AS Path                              Aggregation Suggestion
  162.82.0.0/16        4608 6939 26554 30710   
  167.73.0.0/16        4608 6939 26554 30710 + Announce - aggregate of 167.73.0.0/17 (4608 6939 26554 30710) and 167.73.128.0/17 (4608 6939 26554 30710)
  167.73.0.0/18        4608 6939 26554 30710 - Withdrawn - aggregated with 167.73.64.0/18 (4608 6939 26554 30710)
  167.73.0.0/20        4608 6939 26554 30710 - Withdrawn - matching aggregate 167.73.0.0/18 4608 6939 26554 30710
  167.73.16.0/20       4608 6939 26554 30710 - Withdrawn - matching aggregate 167.73.0.0/18 4608 6939 26554 30710
  167.73.64.0/18       4608 6939 26554 30710 - Withdrawn - aggregated with 167.73.0.0/18 (4608 6939 26554 30710)
  167.73.128.0/18      4608 6939 26554 30710 - Withdrawn - aggregated with 167.73.192.0/18 (4608 6939 26554 30710)
  167.73.192.0/18      4608 6939 26554 30710 - Withdrawn - aggregated with 167.73.128.0/18 (4608 6939 26554 30710)
  208.90.92.0/22       4608 6939 26554 30710   

Advertisements that are fragments of the original RIR allocation (more specifics) originated by this AS.

AS30710   6 More Specifics   8 Total Advertisements   SPECT-19-AS - Spectrum Health, US
    167.73.0.0/18                 167.73.0.0/16
    167.73.0.0/20                 167.73.0.0/16
    167.73.16.0/20                167.73.0.0/16
    167.73.64.0/18                167.73.0.0/16
    167.73.128.0/18               167.73.0.0/16
    167.73.192.0/18               167.73.0.0/16

Whois Entry

whois: 402332

IANA has recorded AS30710 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS30710\n             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #
             
             
             ASNumber:       30710
             ASName:         SPECT-19-AS
             ASHandle:       AS30710
             RegDate:        2003-12-09
             Updated:        2012-03-02
             Ref:            https://rdap.arin.net/registry/autnum/30710
             
             
             OrgName:        Spectrum Health
             OrgId:          SPECT-19
             Address:        100 Michigan St NE
             Address:        Mail Code 064
             City:           Grand Rapids
             StateProv:      MI
             PostalCode:     49503
             Country:        US
             RegDate:        2003-12-01
             Updated:        2026-01-27
             Ref:            https://rdap.arin.net/registry/entity/SPECT-19
             
             
             OrgAbuseHandle: TELEC3-ARIN
             OrgAbuseName:   Telecommunications Manager
             OrgAbusePhone:  +1-616-486-4888 
             OrgAbuseEmail:  Telecom.manager@corewellhealth.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/TELEC3-ARIN
             
             OrgTechHandle: DALDI-ARIN
             OrgTechName:   Daldine, Ken 
             OrgTechPhone:  +1-248-597-7031 
             OrgTechEmail:  kenny.daldine@corewellhealth.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/DALDI-ARIN
             
             OrgTechHandle: TOROD-ARIN
             OrgTechName:   Torode, David 
             OrgTechPhone:  +1-248-766-2584 
             OrgTechEmail:  david.torode@corewellhealth.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/TOROD-ARIN
             
             OrgTechHandle: NETWO425-ARIN
             OrgTechName:   Network Administrators
             OrgTechPhone:  +1-616-486-4888 
             OrgTechEmail:  network.administrator@corewellhealth.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/NETWO425-ARIN
             
             OrgAbuseHandle: NETWO425-ARIN
             OrgAbuseName:   Network Administrators
             OrgAbusePhone:  +1-616-486-4888 
             OrgAbuseEmail:  network.administrator@corewellhealth.org
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NETWO425-ARIN
             
             OrgTechHandle: GRESH26-ARIN
             OrgTechName:   Gresham, William 
             OrgTechPhone:  +1-616-460-5274 
             OrgTechEmail:  william.gresham@corewellhealth.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/GRESH26-ARIN
             
             OrgDNSHandle: DALDI-ARIN
             OrgDNSName:   Daldine, Ken 
             OrgDNSPhone:  +1-248-597-7031 
             OrgDNSEmail:  kenny.daldine@corewellhealth.org
             OrgDNSRef:    https://rdap.arin.net/registry/entity/DALDI-ARIN
             
             OrgTechHandle: TELEC3-ARIN
             OrgTechName:   Telecommunications Manager
             OrgTechPhone:  +1-616-486-4888 
             OrgTechEmail:  Telecom.manager@corewellhealth.org
             OrgTechRef:    https://rdap.arin.net/registry/entity/TELEC3-ARIN
             
             
             #
             # ARIN WHOIS data and services are subject to the Terms of Use
             # available at: https://www.arin.net/resources/registry/whois/tou/
             #
             # If you see inaccuracies in the results, please report at
             # https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
             #
             # Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
             #