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

REN Routing Table Report cscora at bgp.nsrc.org
Mon Oct 30 21:15:36 UTC 2023


IPv4 R&E Routing Table Report   21:15 GMT Mon 30 Oct, 2023

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

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

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

BGP routing table entries examined:                               18820
    Prefixes after maximum aggregation (per Origin AS):           10585
    Deaggregation factor:                                          1.78
    Unique aggregates announced (without unneeded subnets):       11720
    Number of IPv4 prefixes with a valid ROA:                      5025
    Number of IPv4 prefixes with an invalid ROA:                      2
    Number of IPv4 prefixes with no ROA:                          13793
Total ASes present in the Internet Routing Table:                  2752
    Prefixes per ASN:                                              6.84
Origin-only ASes present in the Internet Routing Table:            2376
Origin ASes announcing only one prefix:                            1078
Transit ASes present in the Internet Routing Table:                 376
Transit-only ASes present in the Internet Routing Table:             68
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.2
    Max AS path length visible:                                      14
    Max AS path prepend of ASN ( 10497)                              11
Prefixes from unregistered ASNs in the Routing Table:                 2
    Number of instances of unregistered ASNs:                         2
Number of 32-bit ASNs allocated by the RIRs:                      42954
Number of 32-bit ASNs visible in the Routing Table:                 633
Prefixes from 32-bit ASNs in the Routing Table:                    1926
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:                    206530048
    Equivalent to 12 /8s, 79 /16s and 102 /24s
    Percentage of available address space announced:                5.6
    Percentage of allocated address space announced:                5.6
    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:        2079

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

Prefixes being announced by APNIC Region ASes:                     4602
    Total APNIC prefixes after maximum aggregation:                2271
    APNIC Deaggregation factor:                                    2.03
Prefixes being announced from the APNIC address blocks:            4601
    Unique aggregates announced from the APNIC address blocks:     2588
APNIC Region origin ASes present in the Internet Routing Table:     540
    APNIC Prefixes per ASN:                                        8.52
APNIC Region origin ASes announcing only one prefix:                228
APNIC Region transit ASes present in the Internet Routing Table:     60
Average APNIC Region AS path length visible:                        4.2
    Max APNIC Region AS path length visible:                         14
Number of APNIC region 32-bit ASNs visible in the Routing Table:    205
Number of APNIC addresses announced to Internet:               45565952
    Equivalent to 2 /8s, 183 /16s and 72 /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:                      8329
    Total ARIN prefixes after maximum aggregation:                 4804
    ARIN Deaggregation factor:                                     1.73
Prefixes being announced from the ARIN address blocks:             8344
    Unique aggregates announced from the ARIN address blocks:      5303
ARIN Region origin ASes present in the Internet Routing Table:     1274
    ARIN Prefixes per ASN:                                         6.55
ARIN Region origin ASes announcing only one prefix:                 464
ARIN Region transit ASes present in the Internet Routing Table:     165
Average ARIN Region AS path length visible:                         4.0
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     198
Number of ARIN addresses announced to Internet:                96386816
    Equivalent to 5 /8s, 190 /16s and 191 /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:                      3566
    Total RIPE prefixes after maximum aggregation:                 2846
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3553
    Unique aggregates announced from the RIPE address blocks:      2905
RIPE Region origin ASes present in the Internet Routing Table:      686
    RIPE Prefixes per ASN:                                         5.18
RIPE Region origin ASes announcing only one prefix:                 304
RIPE Region transit ASes present in the Internet Routing Table:     102
Average RIPE Region AS path length visible:                         4.7
    Max RIPE Region AS path length visible:                          13
Number of RIPE region 32-bit ASNs visible in the Routing Table:     146
Number of RIPE addresses announced to Internet:                57951232
    Equivalent to 3 /8s, 116 /16s and 68 /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:                    1255
    Total LACNIC prefixes after maximum aggregation:                491
    LACNIC Deaggregation factor:                                   2.56
Prefixes being announced from the LACNIC address blocks:           1253
    Unique aggregates announced from the LACNIC address blocks:     699
LACNIC Region origin ASes present in the Internet Routing Table:    133
    LACNIC Prefixes per ASN:                                       9.42
LACNIC Region origin ASes announcing only one prefix:                56
LACNIC Region transit ASes present in the Internet Routing Table:    24
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    57
Number of LACNIC addresses announced to Internet:               3898368
    Equivalent to 0 /8s, 59 /16s and 124 /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:                   1066
    Total AfriNIC prefixes after maximum aggregation:               171
    AfriNIC Deaggregation factor:                                  6.23
Prefixes being announced from the AfriNIC address blocks:          1066
    Unique aggregates announced from the AfriNIC address blocks:    222
AfriNIC Region origin ASes present in the Internet Routing Table:    50
    AfriNIC Prefixes per ASN:                                     21.32
AfriNIC Region origin ASes announcing only one prefix:               26
AfriNIC Region transit ASes present in the Internet Routing Table:    9
Average AfriNIC Region AS path length visible:                      3.8
    Max AfriNIC Region AS path length visible:                       10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   27
Number of AfriNIC addresses announced to Internet:              2661632
    Equivalent to 0 /8s, 40 /16s and 157 /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
  2907         593       2162     465  SINET-AS Research Organization of Infor
  7497         437        180      23  CSTNET-AS-AP Computer Network Informati
  1237         193         74     142  KREONET-AS-KR KISTI, KR
  7575         177        329     120  AARNET-AS-AP Australian Academic and Re
 58647         177         18       2  KAGAWAU-AS Kagawa University, JP
  4538         130       4192      73  ERX-CERNET-BKB China Education and Rese
 55824         127         19      17  NKN-CORE-NW NKN Core Network, IN
  4621          69         37      10  UNINET-AS-AP UNINET-, TH
  9411          66         16       2  NONTRINET-AS-AP Kasetsart University, T
  4762          64          4       1  MAHIDOL-BORDER-AS Mahidol University, T

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2152         369        507      93  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
   270         118        329      82  AS270, US
 23024         113          7      17  OCDE, US
  2920         101         34       7  LACOE, US
 21976          80         51      18  NJEDGE-NET, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         283       1903     249  DFN Verein zur Foerderung eines Deutsch
   786         185       1767     182  JANET Jisc Services Limited, GB
  8895         133         24       5  ISU Internet Services Unit ISU, SA
   559         113        533     105  SWITCH Peering requests: peering at switch
  1103          94       1502      83  SURFNET-NL SURFnet, The Netherlands, NL
  2614          94         27      74  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
   553          73        457      73  BELWUE BelWue-Koordination, DE
  1930          65         81      60  RCCN Fundacao para a Ciencia e a Tecnol
  2200          64        599      59  FR-RENATER Reseau National de telecommu

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         209        176      42  Rede Nacional de Ensino e Pesquisa, BR
 28391         153         10      67  Universidad Juarez Autonoma de Tabasco,
 11340         104         24      48  Red Universitaria Nacional, CL
271640          70          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, B
  2715          45         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
263683          33         10      21  Universidad de Costa Rica, CR

Complete listing at https://bgp.nsrc.org/REN/REANNZ/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         253         82       3  KENET-AS, KE
327687         166         28       3  RENU, UG
  8094          48         48      15  PUKNET, ZA
327700          43         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          10          1       6  RwEdNet-AS, RW

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         593       2162     465  SINET-AS Research Organization of Infor
  7497         437        180      23  CSTNET-AS-AP Computer Network Informati
  2018         380        319      71  TENET-1, ZA
  2152         369        507      93  CSUNET-NW, US
   680         283       1903     249  DFN Verein zur Foerderung eines Deutsch
 36914         253         82       3  KENET-AS, KE
  1916         209        176      42  Rede Nacional de Ensino e Pesquisa, BR
   668         204        652     173  DNIC-AS-00668, US
   376         202        178     151  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR

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

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

   ASN  No of nets  Net Savings  Description
  7497         437          414  CSTNET-AS-AP Computer Network Information Cente
  2018         380          309  TENET-1, ZA
  2152         369          276  CSUNET-NW, US
 36914         253          250  KENET-AS, KE
  5786         197          196  UPRENET, PR
 58647         177          175  KAGAWAU-AS Kagawa University, JP
  1916         209          167  Rede Nacional de Ensino e Pesquisa, BR
327687         166          163  RENU, UG
 18558         141          137  NETBLK-RCOEK, US
  8895         133          128  ISU Internet Services Unit ISU, SA

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
    394607  UNALLOCATED  104.249.65.0/24          23024  OCDE, US
    394607  UNALLOCATED  216.100.93.0/24          23024  OCDE, US

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

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

Unassigned Network     ASN Information  AS Name
134.208.0.0/16       Origin:     17711  NDHU-TW National Dong Hwa University, TW
134.208.0.0/16      Transit:      7539  TWAREN-TW National Center for High-perfo
192.31.196.0/24      Origin:       112  RESERVED, ZZ
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL
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/REANNZ/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      /14:35      /15:122     /16:2032    /17:429     /18:445     
/19:583     /20:865     /21:853     /22:1514    /23:1589    /24:10321   
/25:0       /26:0       /27:0       /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         242         253  KENET-AS, KE
  8895         128         133  ISU Internet Services Unit ISU, SA
 23024          52         113  OCDE, US
 32440          38          61  LONI, US
327700          38          43  MoRENet, MZ
  2152          37         369  CSUNET-NW, US
200521          33          56  SEAP-AGE, ES
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US
 25977          30          44  HCCS, US

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

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

   1:2         4:2         5:15        6:4         8:2        12:1      
  14:89       23:6        24:3        31:7        35:6        38:8      
  40:1        41:120      42:10       44:7        45:43       46:5      
  47:1        49:9        50:3        52:1        58:1        59:19     
  60:5        61:3        62:11       63:37       64:52       65:1      
  66:54       67:43       68:9        69:17       70:2        71:1      
  72:7        74:49       76:42       77:9        78:3        79:10     
  80:12       81:27       82:7        83:6        84:12       85:41     
  86:4        87:1        89:10       91:49       92:2        93:4      
  94:4        95:2        96:5        97:2        98:2       101:2      
 102:31      103:270     104:77      108:10      109:9       111:16     
 114:23      116:6       117:61      118:32      119:18      121:28     
 122:8       123:8       124:40      125:4       128:88      129:48     
 130:87      131:60      132:64      133:152     134:108     136:196    
 137:130     138:9       139:5       140:40      141:3       142:38     
 143:22      144:26      145:2       146:131     147:57      148:193    
 149:12      150:44      151:12      152:134     153:14      154:29     
 155:63      156:65      157:18      158:34      159:115     160:30     
 161:19      162:26      163:79      164:13      165:47      166:1      
 167:13      168:106     169:8       170:20      171:1       172:3      
 173:7       175:18      176:8       177:5       179:11      180:15     
 181:1       182:1       184:3       185:56      186:3       187:17     
 188:13      189:3       190:19      191:13      192:1473    193:288    
 194:135     195:80      196:201     197:166     198:556     199:273    
 200:281     201:38      202:615     203:426     204:370     205:145    
 206:195     207:217     208:74      209:145     210:192     211:14     
 212:161     213:5       214:8       216:84      217:9       218:22     
 219:5       220:16      222:2       223:14     

End of report


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