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

REN Routing Table Report cscora at bgp.nsrc.org
Mon Apr 1 19:10:37 UTC 2024


IPv4 R&E Routing Table Report   19:10 GMT Mon 01 Apr, 2024

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

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

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

BGP routing table entries examined:                               18928
    Prefixes after maximum aggregation (per Origin AS):           10605
    Deaggregation factor:                                          1.78
    Unique aggregates announced (without unneeded subnets):       11720
    Number of IPv4 prefixes with a valid ROA:                      5658
    Number of IPv4 prefixes with an invalid ROA:                      7
    Number of IPv4 prefixes with no ROA:                          13263
Total ASes present in the Internet Routing Table:                  2822
    Prefixes per ASN:                                              6.71
Origin-only ASes present in the Internet Routing Table:            2437
Origin ASes announcing only one prefix:                            1088
Transit ASes present in the Internet Routing Table:                 385
Transit-only ASes present in the Internet Routing Table:             76
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       5.6
    Max AS path length visible:                                      21
    Max AS path prepend of ASN ( 47805)                              11
Prefixes from unregistered ASNs in the Routing Table:                13
    Number of instances of unregistered ASNs:                        13
Number of 32-bit ASNs allocated by the RIRs:                      43985
Number of 32-bit ASNs visible in the Routing Table:                 678
Prefixes from 32-bit ASNs in the Routing Table:                    2054
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:              1
Number of addresses announced to Internet:                    201335296
    Equivalent to 12 /8s, 0 /16s and 34 /24s
    Percentage of available address space announced:                5.4
    Percentage of allocated address space announced:                5.4
    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:        2044

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

Prefixes being announced by APNIC Region ASes:                     4721
    Total APNIC prefixes after maximum aggregation:                2317
    APNIC Deaggregation factor:                                    2.04
Prefixes being announced from the APNIC address blocks:            4721
    Unique aggregates announced from the APNIC address blocks:     2655
APNIC Region origin ASes present in the Internet Routing Table:     582
    APNIC Prefixes per ASN:                                        8.11
APNIC Region origin ASes announcing only one prefix:                246
APNIC Region transit ASes present in the Internet Routing Table:     60
Average APNIC Region AS path length visible:                        5.0
    Max APNIC Region AS path length visible:                         13
Number of APNIC region 32-bit ASNs visible in the Routing Table:    228
Number of APNIC addresses announced to Internet:               45724672
    Equivalent to 2 /8s, 185 /16s and 180 /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:                      8310
    Total ARIN prefixes after maximum aggregation:                 4662
    ARIN Deaggregation factor:                                     1.78
Prefixes being announced from the ARIN address blocks:             8335
    Unique aggregates announced from the ARIN address blocks:      5178
ARIN Region origin ASes present in the Internet Routing Table:     1265
    ARIN Prefixes per ASN:                                         6.59
ARIN Region origin ASes announcing only one prefix:                 449
ARIN Region transit ASes present in the Internet Routing Table:     164
Average ARIN Region AS path length visible:                         6.0
    Max ARIN Region AS path length visible:                          17
Number of ARIN region 32-bit ASNs visible in the Routing Table:     203
Number of ARIN addresses announced to Internet:                90967808
    Equivalent to 5 /8s, 108 /16s and 15 /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:                      3577
    Total RIPE prefixes after maximum aggregation:                 2880
    RIPE Deaggregation factor:                                     1.24
Prefixes being announced from the RIPE address blocks:             3565
    Unique aggregates announced from the RIPE address blocks:      2909
RIPE Region origin ASes present in the Internet Routing Table:      681
    RIPE Prefixes per ASN:                                         5.23
RIPE Region origin ASes announcing only one prefix:                 306
RIPE Region transit ASes present in the Internet Routing Table:     102
Average RIPE Region AS path length visible:                         5.0
    Max RIPE Region AS path length visible:                          16
Number of RIPE region 32-bit ASNs visible in the Routing Table:     149
Number of RIPE addresses announced to Internet:                57691136
    Equivalent to 3 /8s, 112 /16s and 76 /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:                    1317
    Total LACNIC prefixes after maximum aggregation:                556
    LACNIC Deaggregation factor:                                   2.37
Prefixes being announced from the LACNIC address blocks:           1316
    Unique aggregates announced from the LACNIC address blocks:     750
LACNIC Region origin ASes present in the Internet Routing Table:    163
    LACNIC Prefixes per ASN:                                       8.07
LACNIC Region origin ASes announcing only one prefix:                58
LACNIC Region transit ASes present in the Internet Routing Table:    26
Average LACNIC Region AS path length visible:                       7.3
    Max LACNIC Region AS path length visible:                        16
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    67
Number of LACNIC addresses announced to Internet:               4277248
    Equivalent to 0 /8s, 65 /16s and 68 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-274844 + 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:                    990
    Total AfriNIC prefixes after maximum aggregation:               179
    AfriNIC Deaggregation factor:                                  5.53
Prefixes being announced from the AfriNIC address blocks:           990
    Unique aggregates announced from the AfriNIC address blocks:    227
AfriNIC Region origin ASes present in the Internet Routing Table:    53
    AfriNIC Prefixes per ASN:                                     18.68
AfriNIC Region origin ASes announcing only one prefix:               29
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      5.3
    Max AfriNIC Region AS path length visible:                       21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   31
Number of AfriNIC addresses announced to Internet:              2674176
    Equivalent to 0 /8s, 40 /16s and 206 /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         591       2162     464  SINET-AS Research Organization of Infor
  7497         442        180      24  CSTNET-AS-AP Computer Network Informati
  1237         189         74     142  KREONET-AS-KR KISTI, KR
 58647         182         18       2  KAGAWAU-AS Kagawa University, JP
  7575         172        329     115  AARNET-AS-AP Australian Academic and Re
 55824         131         19      19  NKN-CORE-NW NKN Core Network, IN
  4538         129       4192      72  ERX-CERNET-BKB China Education and Rese
  4762          71          4       1  MAHIDOL-BORDER-AS Mahidol University, T
  4621          70         37      10  UNINET-AS-AP UNINET-, TH
  9411          66         16       2  NONTRINET-AS-AP Kasetsart University, T

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2152         455        507      96  CSUNET-NW, US
   668         203        648     172  DNIC-AS-00668, US
   376         201        162     151  RISQ-AS, CA
  5786         198         16       1  UPRENET, PR
 18558         141         18       5  NETBLK-RCOEK, US
    81         127        521      30  NCREN, US
 23024         109          7      19  OCDE, US
  2920         104         34       9  LACOE, US
  1736          79         16       1  MU-AS, US
 21976          79         51      18  NJEDGE-NET, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         284       1899     250  DFN Verein zur Foerderung eines Deutsch
   786         186       1767     183  JANET Jisc Services Limited, GB
  8895         134         24       5  ISU Internet Services Unit ISU, SA
   559         114        533     104  SWITCH Peering requests: peering at switch
  1103          95       1503      83  SURFNET-NL SURFnet, The Netherlands, NL
  2614          93         27      73  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
  1930          79         88      74  RCCN Fundacao para a Ciencia e a Tecnol
   553          78        462      78  BELWUE BelWue-Koordination, DE
  3267          77         44      68  RUNNET, RU

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 28391         152         10      66  Universidad Juarez Autonoma de Tabasco,
 11340         108         25      51  Red Universitaria Nacional, CL
  1916          81        176      42  Rede Nacional de Ensino e Pesquisa, BR
271640          67          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
  4270          48         16       2  Red de Interconexion Universitaria, AR
 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
  1251          35         32      25  FUNDACAO DE AMPARO A PESQUISA DO ESTADO

Complete listing at https://bgp.nsrc.org/REN/PERN/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         203         82       3  KENET-AS, KE
327687         162         28       3  RENU, UG
  8094          47         48      18  PUKNET, ZA
327700          46         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37074          13          8       2  UG-AS, GH
 37501          11         49       6  UOFS, ZA
 37654          11          1       6  RwEdNet-AS, RW
 37215           9          8       1  MAREN, MW

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         591       2162     464  SINET-AS Research Organization of Infor
  2152         455        507      96  CSUNET-NW, US
  7497         442        180      24  CSTNET-AS-AP Computer Network Informati
  2018         380        319      71  TENET-1, ZA
   680         284       1899     250  DFN Verein zur Foerderung eines Deutsch
   668         203        648     172  DNIC-AS-00668, US
 36914         203         82       3  KENET-AS, KE
   376         201        162     151  RISQ-AS, CA
  5786         198         16       1  UPRENET, PR
  1237         189         74     142  KREONET-AS-KR KISTI, KR

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

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

   ASN  No of nets  Net Savings  Description
  7497         442          418  CSTNET-AS-AP Computer Network Information Cente
  2152         455          359  CSUNET-NW, US
  2018         380          309  TENET-1, ZA
 36914         203          200  KENET-AS, KE
  5786         198          197  UPRENET, PR
 58647         182          180  KAGAWAU-AS Kagawa University, JP
327687         162          159  RENU, UG
 18558         141          136  NETBLK-RCOEK, US
  8895         134          129  ISU Internet Services Unit ISU, SA
 55824         131          112  NKN-CORE-NW NKN Core Network, IN

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     11570  UNALLOCATED  63.225.1.0/24            40498  ABQG, US
    394607  UNALLOCATED  104.249.65.0/24          23024  OCDE, US
     11570  UNALLOCATED  192.94.216.0/24          40498  ABQG, US
     11570  UNALLOCATED  192.207.226.0/24         40498  ABQG, US
     11570  UNALLOCATED  198.59.106.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.107.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.108.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.188.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.189.0/24          40498  ABQG, US
     11570  UNALLOCATED  198.59.190.0/24          40498  ABQG, US

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

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

Unassigned Network     ASN Information  AS Name
192.31.196.0/24      Origin:       112  RESERVED, ZZ
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL

Complete listing at https://bgp.nsrc.org/REN/PERN/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       /10:1       /11:1       /12:10      
/13:18      /14:33      /15:121     /16:1995    /17:423     /18:452     
/19:566     /20:885     /21:894     /22:1554    /23:1624    /24:10350   
/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         190         203  KENET-AS, KE
  8895         129         134  ISU Internet Services Unit ISU, SA
 23024          51         109  OCDE, US
  2152          48         455  CSUNET-NW, US
327700          40          46  MoRENet, MZ
 32440          38          62  LONI, US
  3267          35          77  RUNNET, RU
 18632          33          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/PERN/data-sXXas-nos

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

   1:2         5:15        6:4         8:2        12:1        14:91     
  23:6        24:3        31:1        35:6        38:8        40:1      
  41:121      42:10       44:6        45:43       46:5        47:1      
  49:9        50:3        52:1        59:19       60:6        61:3      
  62:9        63:37       64:45       65:5        66:60       67:42     
  68:10       69:17       70:2        71:1        72:7        74:51     
  76:42       77:11       78:3        79:10       80:12       81:26     
  82:6        83:7        84:8        85:42       86:4        87:1      
  89:10       91:48       92:2        93:4        94:2        95:2      
  96:5        97:2        98:2       101:2       102:36      103:326    
 104:77      107:16      108:8       109:7       111:16      114:24     
 116:8       117:61      118:33      119:20      121:26      122:8      
 123:8       124:42      125:5       128:85      129:36      130:84     
 131:62      132:59      133:157     134:110     136:197     137:163    
 138:57      139:5       140:38      141:3       142:40      143:24     
 144:26      145:2       146:134     147:58      148:193     149:12     
 150:42      151:9       152:134     153:14      154:30      155:63     
 156:69      157:20      158:35      159:115     160:30      161:15     
 162:21      163:75      164:14      165:47      166:1       167:8      
 168:121     169:6       170:106     171:1       172:3       173:6      
 175:25      176:8       177:6       179:13      180:15      181:1      
 182:9       184:4       185:53      186:3       187:17      188:13     
 189:3       190:17      191:13      192:1385    193:271     194:144    
 195:73      196:202     197:119     198:524     199:272     200:206    
 201:37      202:632     203:413     204:373     205:153     206:189    
 207:223     208:75      209:158     210:205     211:14      212:162    
 213:4       214:8       216:83      217:10      218:22      219:5      
 220:17      222:2       223:14     

End of report


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