Report for 64204

Name

TTEK-12 - TETRA TECH, 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 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.

64204 TTEK-12 - TETRA TECH, INC., US

  Adjacency:     4  Upstream:     4  Downstream:     0
  Upstream Adjacent AS list
    AS702           UUNET - Verizon Business, US
    AS8220          COLT COLT Technology Services Group Limited, GB
    AS1221          ASN-TELSTRA Telstra Limited, AU
    AS701           UUNET - Verizon Business, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
26012 AS64204        ORIGIN  Originate:       2048 /21.00  Transit:          0 /0.00  TTEK-12 - TETRA TECH, INC., 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       %
52802 AS64204       TTEK-12 - TETRA TECH, INC., US                     8      0      0      8      0   0.00%


  Prefix               AS Path                              Aggregation Suggestion
  192.247.24.0/24      4777 2516 701 64204    
  192.247.26.0/24      4777 2516 701 64204    
  192.247.27.0/24      4777 2497 701 702 64204 64204 64204   
  192.247.28.0/24      4608 1221 64204        
  192.247.29.0/24      4777 2497 8220 64204   
  192.247.30.0/24      4777 2516 701 64204 64204   
  192.247.31.0/24      4777 2516 701 64204    
  198.163.178.0/24     4777 2516 701 64204 64204   

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

AS64204   7 More Specifics   8 Total Advertisements   TTEK-12 - TETRA TECH, INC., US
    192.247.24.0/24               192.247.16.0/20
    192.247.26.0/24               192.247.16.0/20
    192.247.27.0/24               192.247.16.0/20
    192.247.28.0/24               192.247.16.0/20
    192.247.29.0/24               192.247.16.0/20
    192.247.30.0/24               192.247.16.0/20
    192.247.31.0/24               192.247.16.0/20

Whois Entry

whois: 402332

IANA has recorded AS64204 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS64204\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:       64204
             ASName:         TTEK-12
             ASHandle:       AS64204
             RegDate:        2015-09-01
             Updated:        2019-03-21
             Ref:            https://rdap.arin.net/registry/autnum/64204
             
             
             OrgName:        TETRA TECH, INC.
             OrgId:          TETRA-15
             Address:        3475 E FOOTHILL BLVD.
             City:           PASADENA
             StateProv:      CA
             PostalCode:     91107
             Country:        US
             RegDate:        2009-01-21
             Updated:        2021-04-06
             Ref:            https://rdap.arin.net/registry/entity/TETRA-15
             
             
             OrgTechHandle: PURRI-ARIN
             OrgTechName:   Purrier, William 
             OrgTechPhone:  +1-916-853-4565 
             OrgTechEmail:  bill.purrier@tetratech.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/PURRI-ARIN
             
             OrgDNSHandle: MOORH10-ARIN
             OrgDNSName:   Moorhead, Chris 
             OrgDNSPhone:  +1-859-514-8756 
             OrgDNSEmail:  chris.moorhead@tetratech.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/MOORH10-ARIN
             
             OrgNOCHandle: LOMBA72-ARIN
             OrgNOCName:   Lombardi, Michael 
             OrgNOCPhone:  +1-518-368-6453 
             OrgNOCEmail:  michael.lombardi@tetratech.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN
             
             OrgTechHandle: LOMBA72-ARIN
             OrgTechName:   Lombardi, Michael 
             OrgTechPhone:  +1-518-368-6453 
             OrgTechEmail:  michael.lombardi@tetratech.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN
             
             OrgNOCHandle: MOORH10-ARIN
             OrgNOCName:   Moorhead, Chris 
             OrgNOCPhone:  +1-859-514-8756 
             OrgNOCEmail:  chris.moorhead@tetratech.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/MOORH10-ARIN
             
             OrgAbuseHandle: PURRI-ARIN
             OrgAbuseName:   Purrier, William 
             OrgAbusePhone:  +1-916-853-4565 
             OrgAbuseEmail:  bill.purrier@tetratech.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/PURRI-ARIN
             
             OrgRoutingHandle: LOMBA72-ARIN
             OrgRoutingName:   Lombardi, Michael 
             OrgRoutingPhone:  +1-518-368-6453 
             OrgRoutingEmail:  michael.lombardi@tetratech.com
             OrgRoutingRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN
             
             OrgTechHandle: ROYYV-ARIN
             OrgTechName:   Roy, Yves 
             OrgTechPhone:  +1-418-871-8151 
             OrgTechEmail:  yves.roy@tetratech.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN
             
             OrgNOCHandle: ROYYV-ARIN
             OrgNOCName:   Roy, Yves 
             OrgNOCPhone:  +1-418-871-8151 
             OrgNOCEmail:  yves.roy@tetratech.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN
             
             OrgAbuseHandle: MOORH10-ARIN
             OrgAbuseName:   Moorhead, Chris 
             OrgAbusePhone:  +1-859-514-8756 
             OrgAbuseEmail:  chris.moorhead@tetratech.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/MOORH10-ARIN
             
             OrgDNSHandle: KOBAY18-ARIN
             OrgDNSName:   Kobayashi, Sean 
             OrgDNSPhone:  +1-626-470-2401 
             OrgDNSEmail:  sean.kobayashi@tetratech.com
             OrgDNSRef:    https://rdap.arin.net/registry/entity/KOBAY18-ARIN
             
             OrgAbuseHandle: LOMBA72-ARIN
             OrgAbuseName:   Lombardi, Michael 
             OrgAbusePhone:  +1-518-368-6453 
             OrgAbuseEmail:  michael.lombardi@tetratech.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN
             
             OrgAbuseHandle: ROYYV-ARIN
             OrgAbuseName:   Roy, Yves 
             OrgAbusePhone:  +1-418-871-8151 
             OrgAbuseEmail:  yves.roy@tetratech.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN
             
             OrgNOCHandle: PURRI-ARIN
             OrgNOCName:   Purrier, William 
             OrgNOCPhone:  +1-916-853-4565 
             OrgNOCEmail:  bill.purrier@tetratech.com
             OrgNOCRef:    https://rdap.arin.net/registry/entity/PURRI-ARIN
             
             OrgAbuseHandle: LEVIN193-ARIN
             OrgAbuseName:   Levine, Darrious 
             OrgAbusePhone:  +1-626-470-2566 
             OrgAbuseEmail:  darrious.levine@tetratech.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/LEVIN193-ARIN
             
             OrgTechHandle: MOORH10-ARIN
             OrgTechName:   Moorhead, Chris 
             OrgTechPhone:  +1-859-514-8756 
             OrgTechEmail:  chris.moorhead@tetratech.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/MOORH10-ARIN
             
             RAbuseHandle: ROYYV-ARIN
             RAbuseName:   Roy, Yves 
             RAbusePhone:  +1-418-871-8151 
             RAbuseEmail:  yves.roy@tetratech.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN
             
             RNOCHandle: JSH254-ARIN
             RNOCName:   SHEN, JOE 
             RNOCPhone:  +1-626-470-2383 
             RNOCEmail:  JOE.SHEN@tetratech.com
             RNOCRef:    https://rdap.arin.net/registry/entity/JSH254-ARIN
             
             RNOCHandle: ROYYV-ARIN
             RNOCName:   Roy, Yves 
             RNOCPhone:  +1-418-871-8151 
             RNOCEmail:  yves.roy@tetratech.com
             RNOCRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN
             
             RTechHandle: LOMBA72-ARIN
             RTechName:   Lombardi, Michael 
             RTechPhone:  +1-518-368-6453 
             RTechEmail:  michael.lombardi@tetratech.com
             RTechRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN
             
             RAbuseHandle: LOMBA72-ARIN
             RAbuseName:   Lombardi, Michael 
             RAbusePhone:  +1-518-368-6453 
             RAbuseEmail:  michael.lombardi@tetratech.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN
             
             RNOCHandle: LOMBA72-ARIN
             RNOCName:   Lombardi, Michael 
             RNOCPhone:  +1-518-368-6453 
             RNOCEmail:  michael.lombardi@tetratech.com
             RNOCRef:    https://rdap.arin.net/registry/entity/LOMBA72-ARIN
             
             RNOCHandle: PURRI-ARIN
             RNOCName:   Purrier, William 
             RNOCPhone:  +1-916-853-4565 
             RNOCEmail:  bill.purrier@tetratech.com
             RNOCRef:    https://rdap.arin.net/registry/entity/PURRI-ARIN
             
             RTechHandle: JSH254-ARIN
             RTechName:   SHEN, JOE 
             RTechPhone:  +1-626-470-2383 
             RTechEmail:  JOE.SHEN@tetratech.com
             RTechRef:    https://rdap.arin.net/registry/entity/JSH254-ARIN
             
             RTechHandle: ROYYV-ARIN
             RTechName:   Roy, Yves 
             RTechPhone:  +1-418-871-8151 
             RTechEmail:  yves.roy@tetratech.com
             RTechRef:    https://rdap.arin.net/registry/entity/ROYYV-ARIN
             
             RTechHandle: PURRI-ARIN
             RTechName:   Purrier, William 
             RTechPhone:  +1-916-853-4565 
             RTechEmail:  bill.purrier@tetratech.com
             RTechRef:    https://rdap.arin.net/registry/entity/PURRI-ARIN
             
             RAbuseHandle: JSH254-ARIN
             RAbuseName:   SHEN, JOE 
             RAbusePhone:  +1-626-470-2383 
             RAbuseEmail:  JOE.SHEN@tetratech.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/JSH254-ARIN
             
             RAbuseHandle: PURRI-ARIN
             RAbuseName:   Purrier, William 
             RAbusePhone:  +1-916-853-4565 
             RAbuseEmail:  bill.purrier@tetratech.com
             RAbuseRef:    https://rdap.arin.net/registry/entity/PURRI-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.
             #