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

REN Routing Table Report cscora at bgp.nsrc.org
Sat Oct 28 18:45:43 UTC 2023


IPv4 R&E Routing Table Report   18:45 GMT Sat 28 Oct, 2023

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

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

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

BGP routing table entries examined:                               15300
    Prefixes after maximum aggregation (per Origin AS):            8151
    Deaggregation factor:                                          1.88
    Unique aggregates announced (without unneeded subnets):        9243
    Number of IPv4 prefixes with a valid ROA:                      3630
    Number of IPv4 prefixes with an invalid ROA:                     25
    Number of IPv4 prefixes with no ROA:                          11645
Total ASes present in the Internet Routing Table:                  2177
    Prefixes per ASN:                                              7.03
Origin-only ASes present in the Internet Routing Table:            1888
Origin ASes announcing only one prefix:                             810
Transit ASes present in the Internet Routing Table:                 289
Transit-only ASes present in the Internet Routing Table:             53
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      15
    Max AS path prepend of ASN ( 47805)                              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:                      42941
Number of 32-bit ASNs visible in the Routing Table:                 482
Prefixes from 32-bit ASNs in the Routing Table:                    1583
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:                    160089856
    Equivalent to 9 /8s, 138 /16s and 199 /24s
    Percentage of available address space announced:                4.3
    Percentage of allocated address space announced:                4.3
    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:        1566

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

Prefixes being announced by APNIC Region ASes:                     4032
    Total APNIC prefixes after maximum aggregation:                2129
    APNIC Deaggregation factor:                                    1.89
Prefixes being announced from the APNIC address blocks:            4031
    Unique aggregates announced from the APNIC address blocks:     2457
APNIC Region origin ASes present in the Internet Routing Table:     488
    APNIC Prefixes per ASN:                                        8.26
APNIC Region origin ASes announcing only one prefix:                212
APNIC Region transit ASes present in the Internet Routing Table:     55
Average APNIC Region AS path length visible:                        4.6
    Max APNIC Region AS path length visible:                         15
Number of APNIC region 32-bit ASNs visible in the Routing Table:    187
Number of APNIC addresses announced to Internet:               45002496
    Equivalent to 2 /8s, 174 /16s and 175 /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:                      7885
    Total ARIN prefixes after maximum aggregation:                 4660
    ARIN Deaggregation factor:                                     1.69
Prefixes being announced from the ARIN address blocks:             7892
    Unique aggregates announced from the ARIN address blocks:      5159
ARIN Region origin ASes present in the Internet Routing Table:     1232
    ARIN Prefixes per ASN:                                         6.41
ARIN Region origin ASes announcing only one prefix:                 437
ARIN Region transit ASes present in the Internet Routing Table:     157
Average ARIN Region AS path length visible:                         4.3
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     189
Number of ARIN addresses announced to Internet:                95363840
    Equivalent to 5 /8s, 175 /16s and 35 /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:                       949
    Total RIPE prefixes after maximum aggregation:                  643
    RIPE Deaggregation factor:                                     1.48
Prefixes being announced from the RIPE address blocks:              944
    Unique aggregates announced from the RIPE address blocks:       658
RIPE Region origin ASes present in the Internet Routing Table:      211
    RIPE Prefixes per ASN:                                         4.47
RIPE Region origin ASes announcing only one prefix:                  91
RIPE Region transit ASes present in the Internet Routing Table:      30
Average RIPE Region AS path length visible:                         4.5
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:      27
Number of RIPE addresses announced to Internet:                13111552
    Equivalent to 0 /8s, 200 /16s and 17 /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:                    1447
    Total LACNIC prefixes after maximum aggregation:                575
    LACNIC Deaggregation factor:                                   2.52
Prefixes being announced from the LACNIC address blocks:           1445
    Unique aggregates announced from the LACNIC address blocks:     773
LACNIC Region origin ASes present in the Internet Routing Table:    167
    LACNIC Prefixes per ASN:                                       8.65
LACNIC Region origin ASes announcing only one prefix:                62
LACNIC Region transit ASes present in the Internet Routing Table:    27
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    70
Number of LACNIC addresses announced to Internet:               4102912
    Equivalent to 0 /8s, 62 /16s and 155 /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:                    985
    Total AfriNIC prefixes after maximum aggregation:               142
    AfriNIC Deaggregation factor:                                  6.94
Prefixes being announced from the AfriNIC address blocks:           985
    Unique aggregates announced from the AfriNIC address blocks:    193
AfriNIC Region origin ASes present in the Internet Routing Table:    25
    AfriNIC Prefixes per ASN:                                     39.40
AfriNIC Region origin ASes announcing only one prefix:                8
AfriNIC Region transit ASes present in the Internet Routing Table:    6
Average AfriNIC Region AS path length visible:                      2.7
    Max AfriNIC Region AS path length visible:                        6
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    9
Number of AfriNIC addresses announced to Internet:              2443008
    Equivalent to 0 /8s, 37 /16s and 71 /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         592       2146     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         128       4176      74  ERX-CERNET-BKB China Education and Rese
 55824         126         19      17  NKN-CORE-NW NKN Core Network, IN
 23570          59          5      11  INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
  2697          56          4      33  ERX-ERNET-AS Education and Research Net
  1659          51       1450      34  ERX-TANET-ASN1 Taiwan Academic Network 

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   668         204        652     173  DNIC-AS-00668, US
   376         202        178     151  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR
  2152         143        507      92  CSUNET-NW, US
 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/TENET/data-ASnet-ARIN

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8895         133         24       5  ISU Internet Services Unit ISU, SA
  1103          94       1502      83  SURFNET-NL SURFnet, The Netherlands, NL
  3267          61         68      46  RUNNET, RU
  1653          50        151      47  SUNET SUNET Swedish University Network,
  1741          39        149      18  FUNETAS, FI
  5495          24          7       8  ASN-SPBGU St.Petersburg, Russia, RU
  3218          21          4      18  COSMOS-3218-AS AS-COSMOS root, RU
  8674          18          2      11  NETNOD-IX Netnod AB, SE
   224          13        256      13  UNINETT UNINETT, The Norwegian Universi
  1880          13          1       8  STUPI, SE

Complete listing at https://bgp.nsrc.org/REN/TENET/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
  4270          51         17       4  Red de Interconexion Universitaria, AR
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, B
  2715          43         99      33  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/TENET/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         252         82       3  KENET-AS, KE
327687         167         28       3  RENU, UG
  8094          48         48      15  PUKNET, ZA
327700          43         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37501          11         49       6  UOFS, ZA
 37654          10          1       6  RwEdNet-AS, RW
 36982           8         33       8  UCT, ZA
 37215           7          8       1  MAREN, MW

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         592       2146     465  SINET-AS Research Organization of Infor
  7497         437        180      23  CSTNET-AS-AP Computer Network Informati
  2018         380        319      71  TENET-1, ZA
 36914         252         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
  1237         193         74     142  KREONET-AS-KR KISTI, KR
  7575         177        329     120  AARNET-AS-AP Australian Academic and Re

Complete listing at https://bgp.nsrc.org/REN/TENET/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
 36914         252          249  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         167          164  RENU, UG
 18558         141          137  NETBLK-RCOEK, US
  8895         133          128  ISU Internet Services Unit ISU, SA
 55824         126          109  NKN-CORE-NW NKN Core Network, IN

Complete listing at https://bgp.nsrc.org/REN/TENET/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/TENET/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/TENET/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       /12:9       
/13:17      /14:30      /15:87      /16:1467    /17:368     /18:396     
/19:483     /20:714     /21:670     /22:1116    /23:1249    /24:8690    
/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         241         252  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
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US
 25977          30          44  HCCS, US
 27609          29          45  USC-UNIVERSITY-HOSPITAL, US
 40326          29          33  ECKERD-COLLEGE, US

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

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

   1:2         4:2         6:4         8:2        12:1        14:88     
  23:6        24:3        35:6        38:8        40:1        41:119    
  42:10       44:3        45:32       47:1        49:9        50:1      
  52:1        58:1        59:19       60:5        61:3        62:6      
  63:32       64:48       65:1        66:39       67:41       68:9      
  69:17       70:2        71:1        72:7        74:46       76:41     
  77:6        80:4        81:1        82:4        84:4        85:17     
  86:4        87:1        89:2        91:17       92:2        93:1      
  96:5        97:1        98:2       101:2       102:27      103:253    
 104:76      108:10      109:6       114:23      116:6       117:61     
 118:32      119:18      121:7       122:8       123:8       124:40     
 125:4       128:85      129:38      130:84      131:54      132:64     
 133:152     134:105     136:196     137:125     138:9       139:5      
 140:40      141:3       142:38      143:20      144:23      146:130    
 147:53      148:186     149:12      150:44      151:11      152:132    
 153:2       154:28      155:63      156:64      157:18      158:33     
 159:114     160:30      161:16      162:23      163:84      164:13     
 165:47      166:1       167:13      168:124     169:8       170:77     
 171:1       172:3       173:7       175:18      176:8       177:6      
 179:12      180:15      181:1       182:1       184:3       185:18     
 186:3       187:18      188:3       189:3       190:20      191:13     
 192:1064    193:38      194:60      195:45      196:200     197:164    
 198:478     199:273     200:325     201:39      202:414     203:311    
 204:353     205:130     206:191     207:152     208:73      209:111    
 210:192     211:14      212:120     213:3       214:8       216:84     
 218:22      219:5       220:16      222:2       223:14     

End of report


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