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

REN Routing Table Report cscora at frr.nsrc.org
Fri Jul 21 19:05:41 UTC 2023


IPv4 R&E Routing Table Report   19:05 GMT Fri 21 Jul, 2023

  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:                               18636
    Prefixes after maximum aggregation (per Origin AS):           10500
    Deaggregation factor:                                          1.77
    Unique aggregates announced (without unneeded subnets):       11594
    Number of IPv4 prefixes with a valid ROA:                      5058
    Number of IPv4 prefixes with an invalid ROA:                     19
    Number of IPv4 prefixes with no ROA:                          13559
Total ASes present in the Internet Routing Table:                  2753
    Prefixes per ASN:                                              6.77
Origin-only ASes present in the Internet Routing Table:            2367
Origin ASes announcing only one prefix:                            1045
Transit ASes present in the Internet Routing Table:                 386
Transit-only ASes present in the Internet Routing Table:             79
Paths with bogon ASNs present in the IPv4 Routing Table:              6
Average AS path length visible in the Internet Routing Table:       5.2
    Max AS path length visible:                                      12
    Max AS path prepend of ASN (136911)                              11
Prefixes from unregistered ASNs in the Routing Table:                 6
    Number of instances of unregistered ASNs:                         6
Number of 32-bit ASNs allocated by the RIRs:                      42274
Number of 32-bit ASNs visible in the Routing Table:                 619
Prefixes from 32-bit ASNs in the Routing Table:                    1890
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:                    204004352
    Equivalent to 12 /8s, 40 /16s and 220 /24s
    Percentage of available address space announced:                5.5
    Percentage of allocated address space announced:                5.5
    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:        1905

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

Prefixes being announced by APNIC Region ASes:                     4803
    Total APNIC prefixes after maximum aggregation:                2267
    APNIC Deaggregation factor:                                    2.12
Prefixes being announced from the APNIC address blocks:            4807
    Unique aggregates announced from the APNIC address blocks:     2589
APNIC Region origin ASes present in the Internet Routing Table:     544
    APNIC Prefixes per ASN:                                        8.84
APNIC Region origin ASes announcing only one prefix:                223
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:    208
Number of APNIC addresses announced to Internet:               45832448
    Equivalent to 2 /8s, 187 /16s and 89 /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:                      7977
    Total ARIN prefixes after maximum aggregation:                 4650
    ARIN Deaggregation factor:                                     1.72
Prefixes being announced from the ARIN address blocks:             7990
    Unique aggregates announced from the ARIN address blocks:      5137
ARIN Region origin ASes present in the Internet Routing Table:     1248
    ARIN Prefixes per ASN:                                         6.40
ARIN Region origin ASes announcing only one prefix:                 446
ARIN Region transit ASes present in the Internet Routing Table:     167
Average ARIN Region AS path length visible:                         5.5
    Max ARIN Region AS path length visible:                          11
Number of ARIN region 32-bit ASNs visible in the Routing Table:     191
Number of ARIN addresses announced to Internet:                93444352
    Equivalent to 5 /8s, 145 /16s and 217 /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:                      3574
    Total RIPE prefixes after maximum aggregation:                 2855
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3562
    Unique aggregates announced from the RIPE address blocks:      2876
RIPE Region origin ASes present in the Internet Routing Table:      680
    RIPE Prefixes per ASN:                                         5.24
RIPE Region origin ASes announcing only one prefix:                 299
RIPE Region transit ASes present in the Internet Routing Table:     107
Average RIPE Region AS path length visible:                         4.8
    Max RIPE Region AS path length visible:                          11
Number of RIPE region 32-bit ASNs visible in the Routing Table:     141
Number of RIPE addresses announced to Internet:                57899520
    Equivalent to 3 /8s, 115 /16s and 122 /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
                       196608-213403
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:                    1398
    Total LACNIC prefixes after maximum aggregation:                567
    LACNIC Deaggregation factor:                                   2.47
Prefixes being announced from the LACNIC address blocks:           1397
    Unique aggregates announced from the LACNIC address blocks:     782
LACNIC Region origin ASes present in the Internet Routing Table:    163
    LACNIC Prefixes per ASN:                                       8.57
LACNIC Region origin ASes announcing only one prefix:                63
LACNIC Region transit ASes present in the Internet Routing Table:    26
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:    66
Number of LACNIC addresses announced to Internet:               4233216
    Equivalent to 0 /8s, 64 /16s and 152 /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:                    878
    Total AfriNIC prefixes after maximum aggregation:               155
    AfriNIC Deaggregation factor:                                  5.66
Prefixes being announced from the AfriNIC address blocks:           877
    Unique aggregates announced from the AfriNIC address blocks:    207
AfriNIC Region origin ASes present in the Internet Routing Table:    36
    AfriNIC Prefixes per ASN:                                     24.36
AfriNIC Region origin ASes announcing only one prefix:               14
AfriNIC Region transit ASes present in the Internet Routing Table:    8
Average AfriNIC Region AS path length visible:                      5.6
    Max AfriNIC Region AS path length visible:                       11
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   13
Number of AfriNIC addresses announced to Internet:              2593792
    Equivalent to 0 /8s, 39 /16s and 148 /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         596       2147     465  SINET-AS Research Organization of Infor
  7497         434        180      23  CSTNET-AS-AP Computer Network Informati
  1237         191         74     139  KREONET-AS-KR KISTI, KR
 58647         178         18       2  KAGAWAU-AS Kagawa University, JP
  7575         177        329     120  AARNET-AS-AP Australian Academic and Re
  4758         166         16       1  NICNET-VSNL-BOARDER-AP National Informa
 55824         146         20      34  NKN-CORE-NW NKN Core Network, IN
  4538         130       4192      73  ERX-CERNET-BKB China Education and Rese
  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/BDREN/data-ASnet-APNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2152         269        507      94  CSUNET-NW, US
   668         216        636     179  DNIC-AS-00668, US
   376         202        178     150  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR
 18558         136         18       4  NETBLK-RCOEK, US
    81         128        521      31  NCREN, US
 23024         113          7      17  OCDE, US
  2920         107         34       7  LACOE, US
 21976          84         51      18  NJEDGE-NET, US
  1736          79         16       1  MU-AS, 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       1903     249  DFN Verein zur Foerderung eines Deutsch
   786         186       1767     183  JANET Jisc Services Limited, GB
  8895         136         24       5  ISU Internet Services Unit ISU, SA
   559         111        533     103  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          74        465      74  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/BDREN/data-ASnet-RIPE

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         220        176      41  Rede Nacional de Ensino e Pesquisa, BR
 28391         153         10      67  Universidad Juarez Autonoma de Tabasco,
 11340         103         24      47  Red Universitaria Nacional, CL
  2715          58        102      38  Fundacao Carlos Chagas Filho de Amparo 
  4270          48         16       1  Red de Interconexion Universitaria, AR
 61468          42          3      14  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
 19611          37         17       2  Associacao Antonio Vieira - Unisinos, B
  3596          34          4       3  Universidad Autonoma Metropolitana, MX
271640          34          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR

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
  2018         371        319      72  TENET-1, ZA
327687         162         28       3  RENU, UG
 36914          83         82       3  KENET-AS, KE
  8094          48         48      15  PUKNET, ZA
327700          41         16       1  MoRENet, MZ
 37215          37          8       1  MAREN, MW
  3208          32          2       1  ARN, DZ
  6879          24          2       9  ENSTINET-, EG
 37501          11         49       6  UOFS, ZA
 37654          10          1       6  RwEdNet-AS, RW

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         596       2147     465  SINET-AS Research Organization of Infor
  7497         434        180      23  CSTNET-AS-AP Computer Network Informati
  2018         371        319      72  TENET-1, ZA
   680         283       1903     249  DFN Verein zur Foerderung eines Deutsch
  2152         269        507      94  CSUNET-NW, US
  1916         220        176      41  Rede Nacional de Ensino e Pesquisa, BR
   668         216        636     179  DNIC-AS-00668, US
   376         202        178     150  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR
  1237         191         74     139  KREONET-AS-KR KISTI, KR

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

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

   ASN  No of nets  Net Savings  Description
  7497         434          411  CSTNET-AS-AP Computer Network Information Cente
  2018         371          299  TENET-1, ZA
  5786         197          196  UPRENET, PR
  1916         220          179  Rede Nacional de Ensino e Pesquisa, BR
 58647         178          176  KAGAWAU-AS Kagawa University, JP
  2152         269          175  CSUNET-NW, US
  4758         166          165  NICNET-VSNL-BOARDER-AP National Informatics Cen
327687         162          159  RENU, UG
 18558         136          132  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
    394607  UNALLOCATED  104.249.65.0/24          23024  OCDE, US
     33008  UNALLOCATED  162.248.66.0/24          11096  FLORIDANET, US
    394607  UNALLOCATED  216.100.93.0/24          23024  OCDE, 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
102.36.194.0/23      Origin:      2018  TENET-1, ZA
102.36.194.0/23     Transit:     11537  INTERNET2-RESEARCH-EDU, US
192.31.196.0/24      Origin:       112  UNASSIGNED
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/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       /10:2       /11:1       /12:10      
/13:18      /14:33      /15:122     /16:1989    /17:421     /18:434     
/19:574     /20:880     /21:859     /22:1492    /23:1575    /24:10225   
/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
  8895         131         136  ISU Internet Services Unit ISU, SA
 36914          75          83  KENET-AS, KE
 23024          52         113  OCDE, US
 32440          37          59  LONI, US
327700          35          41  MoRENet, MZ
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US
 37215          31          37  MAREN, MW
 25977          30          44  HCCS, US
 27609          29          45  USC-UNIVERSITY-HOSPITAL, US

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        14:89     
  23:7        24:3        31:7        35:2        38:9        40:1      
  41:138      42:10       44:6        45:38       46:5        47:1      
  49:9        50:3        52:1        58:1        59:19       60:4      
  61:3        62:10       63:37       64:53       65:1        66:48     
  67:43       68:8        69:19       70:2        71:1        72:7      
  74:50       76:41       77:9        78:3        79:10       80:13     
  81:26       82:7        83:6        84:7        85:41       86:10     
  87:1        89:10       91:48       92:2        93:4        94:4      
  95:2        96:5        97:2        98:2       101:2       102:28     
 103:279     104:80      108:10      109:9       111:16      114:23     
 116:6       117:61      118:32      119:18      121:28      122:8      
 123:8       124:38      125:4       128:87      129:41      130:88     
 131:55      132:60      133:155     134:105     136:197     137:132    
 138:10      139:5       140:52      141:1       142:38      143:21     
 144:26      145:2       146:131     147:58      148:193     149:12     
 150:43      151:11      152:136     153:14      154:31      155:63     
 156:67      157:23      158:37      159:115     160:27      161:24     
 162:26      163:80      164:161     165:46      166:1       167:13     
 168:121     169:8       170:68      171:1       172:3       173:6      
 175:27      176:8       177:5       179:12      180:15      181:1      
 182:1       184:3       185:53      186:3       187:17      188:13     
 189:3       190:18      191:13      192:1361    193:297     194:141    
 195:87      196:202     197:1       198:516     199:283     200:286    
 201:38      202:623     203:428     204:364     205:137     206:189    
 207:191     208:71      209:139     210:185     211:3       212:164    
 213:5       214:8       216:87      217:11      218:22      219:6      
 220:17      222:2       223:14     

End of report


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