Report for 398577

Name

SKANSKA-USA-EAST - SKANSKA USA INC, 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 AS6447) 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.

398577 SKANSKA-USA-EAST, US

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS3257          GTT-BACKBONE GTT, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
24479 AS398577       ORIGIN  Originate:       2304 /20.83  Transit:          0 /0.00  SKANSKA-USA-EAST, 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       %
30249 AS398577      SKANSKA-USA-EAST, US                               2      1      0      1      1  50.00%


  Prefix               AS Path                              Aggregation Suggestion
  144.57.40.0/21       3257 398577            
  144.57.41.0/24       3257 398577          - Withdrawn - matching aggregate 144.57.40.0/21 3257 398577

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

AS398577   3 More Specifics   3 Total Advertisements   SKANSKA-USA-EAST, US
    144.57.40.0/21                144.57.0.0/16
    144.57.40.0/24                144.57.0.0/16
    144.57.41.0/24                144.57.0.0/16

Whois Entry

whois: 402590

IANA has recorded AS398577 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS398577\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:       398577
             ASName:         SKANSKA-USA-EAST
             ASHandle:       AS398577
             RegDate:        2020-07-14
             Updated:        2020-07-14
             Ref:            https://rdap.arin.net/registry/autnum/398577
             
             
             OrgName:        SKANSKA USA INC
             OrgId:          SU-405
             Address:        4235 South Stream Blvd
             Address:        Suite 200
             City:           Charlotte
             StateProv:      NC
             PostalCode:     28217
             Country:        US
             RegDate:        2017-05-20
             Updated:        2025-05-19
             Ref:            https://rdap.arin.net/registry/entity/SU-405
             
             
             OrgTechHandle: AWRI-ARIN
             OrgTechName:   Robinson II, Arthur William
             OrgTechPhone:  +1-704-840-6042 
             OrgTechEmail:  art.robinsonii@skanska.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/AWRI-ARIN
             
             OrgTechHandle: KARLS6-ARIN
             OrgTechName:   KARLSSON, JOACIM 
             OrgTechPhone:  +1-704-501-2187 
             OrgTechEmail:  joacim.karlsson@skanska.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/KARLS6-ARIN
             
             OrgAbuseHandle: KARLS6-ARIN
             OrgAbuseName:   KARLSSON, JOACIM 
             OrgAbusePhone:  +1-704-501-2187 
             OrgAbuseEmail:  joacim.karlsson@skanska.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/KARLS6-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.
             #