Report for 20234

Name

HNTB - HNTB CORPORATION, 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 AS4637) 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.

20234 HNTB - HNTB Companies

  Adjacency:     1  Upstream:     1  Downstream:     0
  Upstream Adjacent AS list
    AS701     UUNET - MCI Communications Services, Inc. d/b/a Verizon Business

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
13548 AS20234  ORIGIN  Originate:       1536 /21.42  Transit:          0 /0.00  HNTB - HNTB Companies

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       %
 5367 AS20234 HNTB - HNTB Companies                         6      2      1      5      1  16.67%


  Prefix               AS Path                              Aggregation Suggestion
  198.51.225.0/24      4637 3491 701 20234    
  198.51.226.0/24      4637 3491 701 20234    
  198.51.228.0/23      4637 3491 701 20234  + Announce - aggregate of 198.51.228.0/24 (4637 3491 701 20234) and 198.51.229.0/24 (4637 3491 701 20234)
  198.51.228.0/24      4637 3491 701 20234  - Withdrawn - aggregated with 198.51.229.0/24 (4637 3491 701 20234)
  198.51.229.0/24      4637 3491 701 20234  - Withdrawn - aggregated with 198.51.228.0/24 (4637 3491 701 20234)
  198.99.250.0/24      4637 3491 701 20234    
  198.99.251.0/24      4637 3491 701 20234 20234   

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

AS20234   5 More Specifics   6 Total Advertisements   HNTB - HNTB Companies
    198.51.226.0/24               198.51.226.0/23
    198.51.228.0/24               198.51.228.0/23
    198.51.229.0/24               198.51.228.0/23
    198.99.250.0/24               198.99.250.0/23
    198.99.251.0/24               198.99.250.0/23

Whois Entry

whois: 402332

IANA has recorded AS20234 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS20234\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:       20234
             ASName:         HNTB
             ASHandle:       AS20234
             RegDate:        2001-04-10
             Updated:        2012-02-24
             Ref:            https://rdap.arin.net/registry/autnum/20234
             
             
             OrgName:        HNTB CORPORATION
             OrgId:          HNTBCO-10
             Address:        1111 Main Street, Suite 2500
             City:           Kansas City
             StateProv:      MO
             PostalCode:     64106
             Country:        US
             RegDate:        2001-04-10
             Updated:        2026-03-10
             Ref:            https://rdap.arin.net/registry/entity/HNTBCO-10
             
             
             OrgNOCHandle: ARINA119-ARIN
             OrgNOCName:   arin-admin
             OrgNOCPhone:  +1-816-472-1201 
             OrgNOCEmail:  tgtelecom@hntb.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/ARINA119-ARIN
             
             OrgAbuseHandle: ARINA119-ARIN
             OrgAbuseName:   arin-admin
             OrgAbusePhone:  +1-816-472-1201 
             OrgAbuseEmail:  tgtelecom@hntb.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ARINA119-ARIN
             
             OrgTechHandle: ARINA119-ARIN
             OrgTechName:   arin-admin
             OrgTechPhone:  +1-816-472-1201 
             OrgTechEmail:  tgtelecom@hntb.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ARINA119-ARIN
             
             RAbuseHandle: ARINA119-ARIN
             RAbuseName:   arin-admin
             RAbusePhone:  +1-816-472-1201 
             RAbuseEmail:  tgtelecom@hntb.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/ARINA119-ARIN
             
             RNOCHandle: ARINA119-ARIN
             RNOCName:   arin-admin
             RNOCPhone:  +1-816-472-1201 
             RNOCEmail:  tgtelecom@hntb.com
             RNOCRef:    https://rdap.arin.net/registry/entity/ARINA119-ARIN
             
             RTechHandle: ARINA119-ARIN
             RTechName:   arin-admin
             RTechPhone:  +1-816-472-1201 
             RTechEmail:  tgtelecom@hntb.com
             RTechRef:    https://rdap.arin.net/registry/entity/ARINA119-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.
             #