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

REN Routing Table Report cscora at bgp.nsrc.org
Thu Jun 27 19:05:39 UTC 2024


IPv4 R&E Routing Table Report   19:05 GMT Thu 27 Jun, 2024

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

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

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

BGP routing table entries examined:                               19240
    Prefixes after maximum aggregation (per Origin AS):           10603
    Deaggregation factor:                                          1.81
    Unique aggregates announced (without unneeded subnets):       11614
    Number of IPv4 prefixes with a valid ROA:                      6126
    Number of IPv4 prefixes with an invalid ROA:                     12
    Number of IPv4 prefixes with no ROA:                          13102
Total ASes present in the Internet Routing Table:                  2748
    Prefixes per ASN:                                              7.00
Origin-only ASes present in the Internet Routing Table:            2376
Origin ASes announcing only one prefix:                            1053
Transit ASes present in the Internet Routing Table:                 372
Transit-only ASes present in the Internet Routing Table:             69
Paths with bogon ASNs present in the IPv4 Routing Table:              3
Average AS path length visible in the Internet Routing Table:       5.3
    Max AS path length visible:                                      12
    Max AS path prepend of ASN (136911)                              11
Prefixes from unregistered ASNs in the Routing Table:                 4
    Number of instances of unregistered ASNs:                         4
Number of 32-bit ASNs allocated by the RIRs:                      44880
Number of 32-bit ASNs visible in the Routing Table:                 647
Prefixes from 32-bit ASNs in the Routing Table:                    1795
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:              2
Number of addresses announced to Internet:                    200512768
    Equivalent to 11 /8s, 243 /16s and 149 /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:        2274

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

Prefixes being announced by APNIC Region ASes:                     4738
    Total APNIC prefixes after maximum aggregation:                2283
    APNIC Deaggregation factor:                                    2.08
Prefixes being announced from the APNIC address blocks:            4742
    Unique aggregates announced from the APNIC address blocks:     2568
APNIC Region origin ASes present in the Internet Routing Table:     555
    APNIC Prefixes per ASN:                                        8.54
APNIC Region origin ASes announcing only one prefix:                237
APNIC Region transit ASes present in the Internet Routing Table:     56
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         12
Number of APNIC region 32-bit ASNs visible in the Routing Table:    218
Number of APNIC addresses announced to Internet:               45602816
    Equivalent to 2 /8s, 183 /16s and 216 /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:                      8542
    Total ARIN prefixes after maximum aggregation:                 4768
    ARIN Deaggregation factor:                                     1.79
Prefixes being announced from the ARIN address blocks:             8554
    Unique aggregates announced from the ARIN address blocks:      5218
ARIN Region origin ASes present in the Internet Routing Table:     1262
    ARIN Prefixes per ASN:                                         6.78
ARIN Region origin ASes announcing only one prefix:                 443
ARIN Region transit ASes present in the Internet Routing Table:     162
Average ARIN Region AS path length visible:                         5.6
    Max ARIN Region AS path length visible:                          11
Number of ARIN region 32-bit ASNs visible in the Routing Table:     205
Number of ARIN addresses announced to Internet:                90657024
    Equivalent to 5 /8s, 103 /16s and 81 /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, 393216-402332
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:                      3554
    Total RIPE prefixes after maximum aggregation:                 2867
    RIPE Deaggregation factor:                                     1.24
Prefixes being announced from the RIPE address blocks:             3542
    Unique aggregates announced from the RIPE address blocks:      2916
RIPE Region origin ASes present in the Internet Routing Table:      672
    RIPE Prefixes per ASN:                                         5.27
RIPE Region origin ASes announcing only one prefix:                 300
RIPE Region transit ASes present in the Internet Routing Table:     103
Average RIPE Region AS path length visible:                         4.7
    Max RIPE Region AS path length visible:                          11
Number of RIPE region 32-bit ASNs visible in the Routing Table:     150
Number of RIPE addresses announced to Internet:                57633024
    Equivalent to 3 /8s, 111 /16s and 105 /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:                    1338
    Total LACNIC prefixes after maximum aggregation:                530
    LACNIC Deaggregation factor:                                   2.52
Prefixes being announced from the LACNIC address blocks:           1337
    Unique aggregates announced from the LACNIC address blocks:     716
LACNIC Region origin ASes present in the Internet Routing Table:    158
    LACNIC Prefixes per ASN:                                       8.46
LACNIC Region origin ASes announcing only one prefix:                59
LACNIC Region transit ASes present in the Internet Routing Table:    23
Average LACNIC Region AS path length visible:                       6.1
    Max LACNIC Region AS path length visible:                        11
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    64
Number of LACNIC addresses announced to Internet:               4199936
    Equivalent to 0 /8s, 64 /16s and 22 /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:                   1064
    Total AfriNIC prefixes after maximum aggregation:               151
    AfriNIC Deaggregation factor:                                  7.05
Prefixes being announced from the AfriNIC address blocks:          1063
    Unique aggregates announced from the AfriNIC address blocks:    194
AfriNIC Region origin ASes present in the Internet Routing Table:    30
    AfriNIC Prefixes per ASN:                                     35.43
AfriNIC Region origin ASes announcing only one prefix:               14
AfriNIC Region transit ASes present in the Internet Routing Table:    7
Average AfriNIC Region AS path length visible:                      6.3
    Max AfriNIC Region AS path length visible:                       10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   10
Number of AfriNIC addresses announced to Internet:              2417664
    Equivalent to 0 /8s, 36 /16s and 228 /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         445        180      24  CSTNET-AS-AP Computer Network Informati
  1237         191         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
  4758         169         16       1  NICNET-VSNL-BOARDER-AP National Informa
 55824         154         20      37  NKN-CORE-NW NKN Core Network, IN
  4538         129       4192      72  ERX-CERNET-BKB China Education and Rese
  4762          75          4       1  MAHIDOL-BORDER-AS Mahidol University, T
  4621          69         37      10  UNINET-AS-AP UNINET-, TH

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2152         481        507      96  CSUNET-NW, US
  2920         224         44      45  LACOE, US
   668         204        632     173  DNIC-AS-00668, US
   376         202        162     151  RISQ-AS, CA
  5786         199         16       1  UPRENET, PR
 18558         141         18       5  NETBLK-RCOEK, US
    81         133        517      33  NCREN, US
 23024         107          7      21  OCDE, US
 21976          87         50      17  NJEDGE-NET, US
   237          85        543      51  MERIT-AS-14, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         283       1899     250  DFN Verein zur Foerderung eines Deutsch
   786         184       1767     181  JANET Jisc Services Limited, GB
  8895         136         24       5  ISU Internet Services Unit ISU, SA
   559         113        533     103  SWITCH Peering requests: peering at switch
  1103          95       1503      83  SURFNET-NL SURFnet, The Netherlands, NL
  2614          91         26      71  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          76         26      66  RUNNET, RU

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 28391         153         10      67  Universidad Juarez Autonoma de Tabasco,
  1916         139        176      42  Rede Nacional de Ensino e Pesquisa, BR
 11340         109         25      52  Red Universitaria Nacional, CL
271640          64          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
  4270          49         17       3  Red de Interconexion Universitaria, AR
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, B
  2715          46         99      35  Fundacao Carlos Chagas Filho de Amparo 
 61468          44          5      15  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
  3596          37          8       4  Universidad Autonoma Metropolitana, MX

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 36914         449         82       3  KENET-AS, KE
  2018         381        319      71  TENET-1, ZA
  8094          47         48      18  PUKNET, ZA
327700          47         16       1  MoRENet, MZ
 37215          36          8       1  MAREN, MW
  6879          24          2       9  ENSTINET-, EG
 37661          13          8       5  NRaE1-AS, NG
 37182          11          8       1  TERNET, TZ
 37501          11         49       6  UOFS, ZA
 36982           8         33       8  UCT, ZA

Complete listing at https://bgp.nsrc.org/REN/BDREN/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         481        507      96  CSUNET-NW, US
 36914         449         82       3  KENET-AS, KE
  7497         445        180      24  CSTNET-AS-AP Computer Network Informati
  2018         381        319      71  TENET-1, ZA
   680         283       1899     250  DFN Verein zur Foerderung eines Deutsch
  2920         224         44      45  LACOE, US
   668         204        632     173  DNIC-AS-00668, US
   376         202        162     151  RISQ-AS, CA
  5786         199         16       1  UPRENET, PR

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

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

   ASN  No of nets  Net Savings  Description
 36914         449          446  KENET-AS, KE
  7497         445          421  CSTNET-AS-AP Computer Network Information Cente
  2152         481          385  CSUNET-NW, US
  2018         381          310  TENET-1, ZA
  5786         199          198  UPRENET, PR
 58647         182          180  KAGAWAU-AS Kagawa University, JP
  2920         224          179  LACOE, US
  4758         169          168  NICNET-VSNL-BOARDER-AP National Informatics Cen
 18558         141          136  NETBLK-RCOEK, US
  8895         136          131  ISU Internet Services Unit ISU, SA

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     65200  PRIVATE      43.224.124.0/22         132124  ICTA-LK Information and Comm
     65200  PRIVATE      103.11.32.0/22          132124  ICTA-LK Information and Comm
     26971  UNALLOCATED  129.111.0.0/16             276  OTS-AS-276, US
     65200  PRIVATE      220.247.225.0/24        132124  ICTA-LK Information and Comm

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

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

Unassigned Network     ASN Information  AS Name
164.160.192.0/21     Origin:     37661  NRaE1-AS, NG
164.160.192.0/21    Transit:     37288  WACREN, SN
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/BDREN/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     /16:1993    /17:422     /18:445     
/19:580     /20:899     /21:879     /22:1470    /23:1609    /24:10758   
/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         439         449  KENET-AS, KE
  8895         131         136  ISU Internet Services Unit ISU, SA
  2152          56         481  CSUNET-NW, US
 23024          49         107  OCDE, US
327700          41          47  MoRENet, MZ
 32440          36          62  LONI, US
  3267          35          76  RUNNET, RU
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US
200521          32          55  SEAP-AGE, ES

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

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

   1:1         5:15        6:4         8:2        12:1        14:92     
  23:5        24:3        31:1        35:3        38:10       40:1      
  41:200      42:10       44:5        45:37       46:5        47:1      
  49:10       50:5        52:1        59:19       60:6        61:3      
  62:8        63:37       64:45       65:5        66:51       67:42     
  68:10       69:19       70:2        71:1        72:7        74:52     
  76:39       77:10       78:3        79:10       80:14       81:25     
  82:6        83:7        84:5        85:42       86:5        87:1      
  89:11       91:49       92:2        93:5        94:2        95:1      
  96:5        97:2        98:2       101:1       102:5       103:287    
 104:77      107:12      108:8       109:8       114:24      116:8      
 117:61      118:34      119:23      121:11      122:8       123:8      
 124:41      125:5       128:84      129:40      130:94      131:62     
 132:66      133:157     134:109     136:198     137:79      138:57     
 139:5       140:38      141:3       142:25      143:25      144:26     
 145:2       146:135     147:63      148:194     149:11      150:40     
 151:9       152:136     153:15      154:37      155:64      156:134    
 157:21      158:35      159:121     160:30      161:17      162:23     
 163:62      164:167     165:48      166:1       167:13      168:120    
 169:6       170:106     171:1       172:3       173:6       175:18     
 176:8       177:6       179:14      180:15      181:1       182:1      
 184:2       185:52      186:3       187:17      188:13      189:3      
 190:18      191:13      192:1391    193:262     194:141     195:74     
 196:153     197:317     198:543     199:274     200:247     201:37     
 202:608     203:429     204:392     205:160     206:204     207:286    
 208:71      209:164     210:194     211:14      212:163     213:6      
 214:8       216:92      217:9       218:22      219:5       220:18     
 222:2       223:14     

End of report


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