Report for 19105

Name

FIRSTBANK - FirstBank, 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.

19105 FIRSTBANK - FirstBank, US

  Adjacency:     2  Upstream:     2  Downstream:     0
  Upstream Adjacent AS list
    AS6461          ZAYO-6461 - Zayo Bandwidth, US
    AS3356          LEVEL3 - Level 3 Parent, LLC, US

Announced Prefixes

Rank  AS       Type    Originate Addr Space  (pfx)   Transit Addr space  (pfx)  Description
32343 AS19105        ORIGIN  Originate:       1280 /21.68  Transit:          0 /0.00  FIRSTBANK - FirstBank, 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       %
12047 AS19105       FIRSTBANK - FirstBank, US                          5      4      1      2      3  60.00%


  Prefix               AS Path                              Aggregation Suggestion
  205.243.23.0/24      4777 2497 3356 19105   
  208.89.180.0/22      4777 2497 3356 19105 + Announce - aggregate of 208.89.180.0/23 (4777 2497 3356 19105) and 208.89.182.0/23 (4777 2497 3356 19105)
  208.89.180.0/24      4777 2497 3356 19105 - Withdrawn - aggregated with 208.89.181.0/24 (4777 2497 3356 19105)
  208.89.181.0/24      4777 2497 3356 19105 - Withdrawn - aggregated with 208.89.180.0/24 (4777 2497 3356 19105)
  208.89.182.0/24      4777 2497 3356 19105 - Withdrawn - aggregated with 208.89.183.0/24 (4777 2497 3356 19105)
  208.89.183.0/24      4777 2497 3356 19105 - Withdrawn - aggregated with 208.89.182.0/24 (4777 2497 3356 19105)

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

AS19105   5 More Specifics   5 Total Advertisements   FIRSTBANK - FirstBank, US
    205.243.23.0/24               205.240.0.0/13
    208.89.180.0/24               208.89.180.0/22
    208.89.181.0/24               208.89.180.0/22
    208.89.182.0/24               208.89.180.0/22
    208.89.183.0/24               208.89.180.0/22

Whois Entry

whois: 402332

IANA has recorded AS19105 as originally allocated by 
/usr/bin/whois -h jwhois.apnic.netr "AS19105\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:       19105
             ASName:         FIRSTBANK
             ASHandle:       AS19105
             RegDate:        2000-11-20
             Updated:        2026-04-09
             Ref:            https://rdap.arin.net/registry/autnum/19105
             
             
             OrgName:        PNC Bank, National Association
             OrgId:          PNCBAN-1
             Address:        Two PNC Plaza
             Address:        620 Liberty Ave.
             City:           Pittsburgh
             StateProv:      PA
             PostalCode:     15265
             Country:        US
             RegDate:        1994-11-15
             Updated:        2024-11-25
             Ref:            https://rdap.arin.net/registry/entity/PNCBAN-1
             
             
             OrgAbuseHandle: NH1266-ARIN
             OrgAbuseName:   Na Hostmaster
             OrgAbusePhone:  +1-412-762-3372 
             OrgAbuseEmail:  hostmaster@pnc.com
             OrgAbuseRef:    https://rdap.arin.net/registry/entity/NH1266-ARIN
             
             OrgTechHandle: NH1266-ARIN
             OrgTechName:   Na Hostmaster
             OrgTechPhone:  +1-412-762-3372 
             OrgTechEmail:  hostmaster@pnc.com
             OrgTechRef:    https://rdap.arin.net/registry/entity/NH1266-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.
             #