[REN-BGP-stats-all] IPv4 R&E Routing Table Report - AIT (R&E) view

REN Routing Table Report cscora at bgp.nsrc.org
Mon Nov 20 20:25:41 UTC 2023


IPv4 R&E Routing Table Report   20:25 GMT Mon 20 Nov, 2023

  IPv4 BGP Table (R&E) as seen at AIT.

Report Website:     https://bgp.nsrc.org/REN
Detailed Analysis:  https://bgp.nsrc.org/REN/AIT/

Analysis Summary
----------------

BGP routing table entries examined:                               22640
    Prefixes after maximum aggregation (per Origin AS):           11259
    Deaggregation factor:                                          2.01
    Unique aggregates announced (without unneeded subnets):       12652
    Number of IPv4 prefixes with a valid ROA:                      8374
    Number of IPv4 prefixes with an invalid ROA:                    190
    Number of IPv4 prefixes with no ROA:                          14076
Total ASes present in the Internet Routing Table:                  2973
    Prefixes per ASN:                                              7.62
Origin-only ASes present in the Internet Routing Table:            2563
Origin ASes announcing only one prefix:                            1147
Transit ASes present in the Internet Routing Table:                 410
Transit-only ASes present in the Internet Routing Table:             75
Paths with bogon ASNs present in the IPv4 Routing Table:             16
Average AS path length visible in the Internet Routing Table:       6.6
    Max AS path length visible:                                      18
    Max AS path prepend of ASN ( 47805)                              11
Prefixes from unregistered ASNs in the Routing Table:                23
    Number of instances of unregistered ASNs:                        23
Number of 32-bit ASNs allocated by the RIRs:                      43081
Number of 32-bit ASNs visible in the Routing Table:                 782
Prefixes from 32-bit ASNs in the Routing Table:                    3438
Number of bogon 32-bit ASNs visible in the Routing Table:             0
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              3
Number of addresses announced to Internet:                    194878016
    Equivalent to 11 /8s, 157 /16s and 154 /24s
    Percentage of available address space announced:                5.3
    Percentage of allocated address space announced:                5.3
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.6
Total number of prefixes smaller than registry allocations:        2190

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                     8194
    Total APNIC prefixes after maximum aggregation:                2895
    APNIC Deaggregation factor:                                    2.83
Prefixes being announced from the APNIC address blocks:            8032
    Unique aggregates announced from the APNIC address blocks:     3398
APNIC Region origin ASes present in the Internet Routing Table:     713
    APNIC Prefixes per ASN:                                       11.27
APNIC Region origin ASes announcing only one prefix:                296
APNIC Region transit ASes present in the Internet Routing Table:     87
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         15
Number of APNIC region 32-bit ASNs visible in the Routing Table:    339
Number of APNIC addresses announced to Internet:               36279616
    Equivalent to 2 /8s, 41 /16s and 149 /24s
APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 64297-64395, 131072-153913
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                      8306
    Total ARIN prefixes after maximum aggregation:                 4732
    ARIN Deaggregation factor:                                     1.76
Prefixes being announced from the ARIN address blocks:             8431
    Unique aggregates announced from the ARIN address blocks:      5317
ARIN Region origin ASes present in the Internet Routing Table:     1268
    ARIN Prefixes per ASN:                                         6.65
ARIN Region origin ASes announcing only one prefix:                 456
ARIN Region transit ASes present in the Internet Routing Table:     165
Average ARIN Region AS path length visible:                         7.9
    Max ARIN Region AS path length visible:                          18
Number of ARIN region 32-bit ASNs visible in the Routing Table:     197
Number of ARIN addresses announced to Internet:                93673728
    Equivalent to 5 /8s, 149 /16s and 89 /24s
ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-401308
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  47/8,  48/8,  50/8,  52/8,  53/8,
                        54/8,  55/8,  56/8,  57/8,  63/8,  64/8,  65/8,
                        66/8,  67/8,  68/8,  69/8,  70/8,  71/8,  72/8,
                        73/8,  74/8,  75/8,  76/8,  96/8,  97/8,  98/8,
                        99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
                       130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
                       138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
                       147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
                       158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
                       166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
                       174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
                       206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
                      

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                      3625
    Total RIPE prefixes after maximum aggregation:                 2868
    RIPE Deaggregation factor:                                     1.26
Prefixes being announced from the RIPE address blocks:             3675
    Unique aggregates announced from the RIPE address blocks:      2934
RIPE Region origin ASes present in the Internet Routing Table:      691
    RIPE Prefixes per ASN:                                         5.32
RIPE Region origin ASes announcing only one prefix:                 305
RIPE Region transit ASes present in the Internet Routing Table:     105
Average RIPE Region AS path length visible:                         7.0
    Max RIPE Region AS path length visible:                          18
Number of RIPE region 32-bit ASNs visible in the Routing Table:     149
Number of RIPE addresses announced to Internet:                57907712
    Equivalent to 3 /8s, 115 /16s and 154 /24s
RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 64396-64495
                       196608-216475
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                    1428
    Total LACNIC prefixes after maximum aggregation:                572
    LACNIC Deaggregation factor:                                   2.50
Prefixes being announced from the LACNIC address blocks:           1426
    Unique aggregates announced from the LACNIC address blocks:     765
LACNIC Region origin ASes present in the Internet Routing Table:    167
    LACNIC Prefixes per ASN:                                       8.54
LACNIC Region origin ASes announcing only one prefix:                64
LACNIC Region transit ASes present in the Internet Routing Table:    26
Average LACNIC Region AS path length visible:                       8.9
    Max LACNIC Region AS path length visible:                        17
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    69
Number of LACNIC addresses announced to Internet:               4221440
    Equivalent to 0 /8s, 64 /16s and 106 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-273820 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                   1064
    Total AfriNIC prefixes after maximum aggregation:               172
    AfriNIC Deaggregation factor:                                  6.19
Prefixes being announced from the AfriNIC address blocks:          1073
    Unique aggregates announced from the AfriNIC address blocks:    235
AfriNIC Region origin ASes present in the Internet Routing Table:    52
    AfriNIC Prefixes per ASN:                                     20.63
AfriNIC Region origin ASes announcing only one prefix:               26
AfriNIC Region transit ASes present in the Internet Routing Table:   10
Average AfriNIC Region AS path length visible:                      7.2
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   28
Number of AfriNIC addresses announced to Internet:              2729472
    Equivalent to 0 /8s, 41 /16s and 166 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks  41/8,  45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
                      

APNIC Region per AS prefix count summary
----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7470         684        363      73  TRUEINTERNET-AS-AP TRUE INTERNET Co.,Lt
131090         583         55       9  CAT-IDC-4BYTENET-AS-AP CAT TELECOM Publ
 45458         499         39      45  SBN-AWN-AS-02-AP SBN-ISPAWN-ISP and SBN
  9931         473         70      33  CAT-AP The Communication Authoity of Th
  7497         437        180      23  CSTNET-AS-AP Computer Network Informati
131293         273         23      65  TOT-LLI-AS-AP TOT Public Company Limite
  4765         208         13      95  PACIFICINTERNET-AS-AP Pacific Internet 
  1237         193         74     142  KREONET-AS-KR KISTI, KR
  7575         177        329     120  AARNET-AS-AP Australian Academic and Re
 23884         157         10      25  PROENNET-AS Proen Corp Public Company L

Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2152         380        507      96  CSUNET-NW, US
   668         204        652     173  DNIC-AS-00668, US
   376         202        178     151  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR
 18558         141         18       4  NETBLK-RCOEK, US
    81         127        521      30  NCREN, US
 23024         112          7      19  OCDE, US
  2920         101         34       7  LACOE, US
 21976          80         51      18  NJEDGE-NET, US
  1736          79         16       1  MU-AS, US

Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         285       1903     249  DFN Verein zur Foerderung eines Deutsch
   786         189       1767     182  JANET Jisc Services Limited, GB
  8895         131         24       5  ISU Internet Services Unit ISU, SA
   559         113        533     105  SWITCH Peering requests: peering at switch
  1103          95       1502      83  SURFNET-NL SURFnet, The Netherlands, NL
  2614          95         27      74  ROEDUNET, RO
   137          94        677      77  ASGARR Consortium GARR, IT
   553          76        462      76  BELWUE BelWue-Koordination, DE
  3267          68         69      51  RUNNET, RU
  1930          65         81      60  RCCN Fundacao para a Ciencia e a Tecnol

Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         210        176      42  Rede Nacional de Ensino e Pesquisa, BR
 28391         154         10      67  Universidad Juarez Autonoma de Tabasco,
 11340         105         24      49  Red Universitaria Nacional, CL
271640          68          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
  4270          50         17       3  Red de Interconexion Universitaria, AR
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, B
  2715          44         99      34  Fundacao Carlos Chagas Filho de Amparo 
 61468          43          3      14  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
  3596          34          4       3  Universidad Autonoma Metropolitana, MX

Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         380        319      71  TENET-1, ZA
 36914         245         82       3  KENET-AS, KE
327687         165         28       3  RENU, UG
  8094          48         48      15  PUKNET, ZA
327700          45         16       1  MoRENet, MZ
  3208          32          2       1  ARN, DZ
  6879          24          2       9  ENSTINET-, EG
 37074          14          8       2  UG-AS, GH
 37501          11         49       6  UOFS, ZA
 37654          11          1       6  RwEdNet-AS, RW

Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7470         684        363      73  TRUEINTERNET-AS-AP TRUE INTERNET Co.,Lt
131090         583         55       9  CAT-IDC-4BYTENET-AS-AP CAT TELECOM Publ
 45458         499         39      45  SBN-AWN-AS-02-AP SBN-ISPAWN-ISP and SBN
  9931         473         70      33  CAT-AP The Communication Authoity of Th
  7497         437        180      23  CSTNET-AS-AP Computer Network Informati
  2018         380        319      71  TENET-1, ZA
  2152         380        507      96  CSUNET-NW, US
   680         285       1903     249  DFN Verein zur Foerderung eines Deutsch
131293         273         23      65  TOT-LLI-AS-AP TOT Public Company Limite
 36914         245         82       3  KENET-AS, KE

Complete listing at https://bgp.nsrc.org/REN/AIT/data-ASnet

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
131090         583          574  CAT-IDC-4BYTENET-AS-AP CAT TELECOM Public Compa
 45458         499          454  SBN-AWN-AS-02-AP SBN-ISPAWN-ISP and SBN-NIXAWN-
  9931         473          440  CAT-AP The Communication Authoity of Thailand, 
  7497         437          414  CSTNET-AS-AP Computer Network Information Cente
  2018         380          309  TENET-1, ZA
  2152         380          284  CSUNET-NW, US
 36914         245          242  KENET-AS, KE
131293         273          208  TOT-LLI-AS-AP TOT Public Company Limited, TH
  5786         197          196  UPRENET, PR
  1916         210          168  Rede Nacional de Ensino e Pesquisa, BR

Complete listing at https://bgp.nsrc.org/REN/AIT/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     65208  PRIVATE      63.225.1.0/24            11570  RESERVED, ZZ
     65101  PRIVATE      64.54.9.0/24              5653  UCSF, US
     65101  PRIVATE      64.54.18.0/24             5653  UCSF, US
     65101  PRIVATE      64.54.128.0/24            5653  UCSF, US
     65101  PRIVATE      64.54.149.0/24            5653  UCSF, US
     65101  PRIVATE      64.54.162.0/24            5653  UCSF, US
     65101  PRIVATE      64.54.196.0/24            5653  UCSF, US
     65101  PRIVATE      64.54.197.0/24            5653  UCSF, US
    138219  UNALLOCATED  103.207.69.0/24          23884  PROENNET-AS Proen Corp Publi
    394607  UNALLOCATED  104.249.65.0/24          23024  OCDE, US

Complete listing at https://bgp.nsrc.org/REN/AIT/data-badAS

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
134.208.0.0/16       Origin:      1659  ERX-TANET-ASN1 Taiwan Academic Network T
134.208.0.0/16      Transit:      9264  ASNET Academia Sinica, TW
192.31.196.0/24      Origin:       112  RESERVED, ZZ
192.31.196.0/24     Transit:      7500  M-ROOT-DNS WIDE Project, JP
202.58.231.0/24      Origin:    134096  EHEALTHNSW-AS-AP eHealth NSW, AU
202.58.231.0/24     Transit:      7575  AARNET-AS-AP Australian Academic and Res

Complete listing at https://bgp.nsrc.org/REN/AIT/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:0        /9:1       /10:2       /11:1       /12:10      
/13:18      /14:33      /15:122     /16:1835    /17:434     /18:545     
/19:621     /20:972     /21:908     /22:1805    /23:1777    /24:13551   
/25:1       /26:2       /27:2       /28:0       /29:0       /30:0       
/31:0       /32:0       

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

   ASN  No of nets  Total ann.  Description
 36914         233         245  KENET-AS, KE
  8895         126         131  ISU Internet Services Unit ISU, SA
 23024          52         112  OCDE, US
134729          48          64  JPTL-AS-AP JOINT POWER TECHNOLOGY LIMITED, HK
  2152          40         380  CSUNET-NW, US
327700          40          45  MoRENet, MZ
 32440          38          61  LONI, US
 18632          34          66  VOLCANO-VISION, US
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US

Complete listing at https://bgp.nsrc.org/REN/AIT/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

   1:132       2:1         5:15        6:4         8:4        12:1      
  14:92       18:1        23:23       24:1        27:54       31:7      
  35:6        38:8        40:1        41:120      42:10       43:21     
  44:7        45:74       46:5        47:4        49:338      50:4      
  52:1        58:94       59:10       60:5        61:290      62:13     
  63:37       64:56       65:37       66:54       67:43       68:9      
  69:18       70:2        71:1        72:7        74:46       76:42     
  77:9        78:3        79:10       80:13       81:26       82:7      
  83:9        84:11       85:27       86:4        87:1        89:10     
  90:1        91:48       92:2        93:4        94:4        95:18     
  96:5        97:2        98:3       101:9       102:35      103:419    
 104:75      106:3       107:20      108:13      109:6       110:374    
 111:39      112:27      113:42      114:26      115:12      116:23     
 117:61      118:94      119:194     121:11      122:219     123:9      
 124:45      125:8       128:92      129:49      130:87      131:74     
 132:64      133:9       134:317     136:197     137:133     138:10     
 139:11      140:38      141:8       142:39      143:24      144:36     
 145:3       146:134     147:83      148:200     149:12      150:46     
 151:12      152:133     153:14      154:62      155:63      156:67     
 157:26      158:33      159:239     160:4       161:20      162:26     
 163:92      164:70      165:48      166:1       167:21      168:118    
 169:8       170:91      171:140     172:5       173:7       174:1      
 175:18      176:8       177:6       179:12      180:66      182:12     
 183:9       184:11      185:66      186:3       187:17      188:15     
 189:3       190:19      191:13      192:1331    193:301     194:136    
 195:93      196:203     197:159     198:544     199:278     200:320    
 201:38      202:583     203:781     204:376     205:150     206:201    
 207:222     208:77      209:166     210:250     211:16      212:159    
 213:5       214:8       216:85      217:9       218:23      220:16     
 221:36      222:2       223:59     

End of report


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