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

REN Routing Table Report cscora at frr.nsrc.org
Thu Sep 29 17:05:39 UTC 2022


IPv4 R&E Routing Table Report   17:05 GMT Thu 29 Sep, 2022

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

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

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

BGP routing table entries examined:                               12830
    Prefixes after maximum aggregation (per Origin AS):            7807
    Deaggregation factor:                                          1.64
    Unique aggregates announced (without unneeded subnets):        8636
    Number of IPv4 prefixes with a valid ROA:                      3511
    Number of IPv4 prefixes with an invalid ROA:                     47
    Number of IPv4 prefixes with no ROA:                           9272
Total ASes present in the Internet Routing Table:                  2006
    Prefixes per ASN:                                              6.40
Origin-only ASes present in the Internet Routing Table:            1723
Origin ASes announcing only one prefix:                             825
Transit ASes present in the Internet Routing Table:                 283
Transit-only ASes present in the Internet Routing Table:             48
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.4
    Max AS path length visible:                                      14
    Max AS path prepend of ASN ( 30116)                              10
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:                      40277
Number of 32-bit ASNs visible in the Routing Table:                 479
Prefixes from 32-bit ASNs in the Routing Table:                    1290
Number of bogon 32-bit ASNs visible in the Routing Table:             0
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              2
Number of addresses announced to Internet:                    161832288
    Equivalent to 9 /8s, 165 /16s and 93 /24s
    Percentage of available address space announced:                4.4
    Percentage of allocated address space announced:                4.4
    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:        1308

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

Prefixes being announced by APNIC Region ASes:                     3312
    Total APNIC prefixes after maximum aggregation:                1740
    APNIC Deaggregation factor:                                    1.90
Prefixes being announced from the APNIC address blocks:            3313
    Unique aggregates announced from the APNIC address blocks:     1879
APNIC Region origin ASes present in the Internet Routing Table:     440
    APNIC Prefixes per ASN:                                        7.53
APNIC Region origin ASes announcing only one prefix:                205
APNIC Region transit ASes present in the Internet Routing Table:     54
Average APNIC Region AS path length visible:                        4.1
    Max APNIC Region AS path length visible:                         12
Number of APNIC region 32-bit ASNs visible in the Routing Table:    178
Number of APNIC addresses announced to Internet:               38341888
    Equivalent to 2 /8s, 73 /16s and 13 /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, 131072-151865
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:                      5257
    Total ARIN prefixes after maximum aggregation:                 3131
    ARIN Deaggregation factor:                                     1.68
Prefixes being announced from the ARIN address blocks:             5267
    Unique aggregates announced from the ARIN address blocks:      3588
ARIN Region origin ASes present in the Internet Routing Table:      806
    ARIN Prefixes per ASN:                                         6.53
ARIN Region origin ASes announcing only one prefix:                 290
ARIN Region transit ASes present in the Internet Routing Table:     110
Average ARIN Region AS path length visible:                         5.0
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     117
Number of ARIN addresses announced to Internet:                64188288
    Equivalent to 3 /8s, 211 /16s and 111 /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:                      2879
    Total RIPE prefixes after maximum aggregation:                 2433
    RIPE Deaggregation factor:                                     1.18
Prefixes being announced from the RIPE address blocks:             2871
    Unique aggregates announced from the RIPE address blocks:      2515
RIPE Region origin ASes present in the Internet Routing Table:      561
    RIPE Prefixes per ASN:                                         5.12
RIPE Region origin ASes announcing only one prefix:                 259
RIPE Region transit ASes present in the Internet Routing Table:      79
Average RIPE Region AS path length visible:                         3.7
    Max RIPE Region AS path length visible:                          13
Number of RIPE region 32-bit ASNs visible in the Routing Table:     122
Number of RIPE addresses announced to Internet:                55257728
    Equivalent to 3 /8s, 75 /16s and 42 /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:                     900
    Total LACNIC prefixes after maximum aggregation:                407
    LACNIC Deaggregation factor:                                   2.21
Prefixes being announced from the LACNIC address blocks:            899
    Unique aggregates announced from the LACNIC address blocks:     499
LACNIC Region origin ASes present in the Internet Routing Table:    118
    LACNIC Prefixes per ASN:                                       7.62
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:                       4.9
    Max LACNIC Region AS path length visible:                         9
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    49
Number of LACNIC addresses announced to Internet:               3220576
    Equivalent to 0 /8s, 49 /16s and 36 /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:                    478
    Total AfriNIC prefixes after maximum aggregation:                92
    AfriNIC Deaggregation factor:                                  5.20
Prefixes being announced from the AfriNIC address blocks:           478
    Unique aggregates announced from the AfriNIC address blocks:    153
AfriNIC Region origin ASes present in the Internet Routing Table:    29
    AfriNIC Prefixes per ASN:                                     16.48
AfriNIC Region origin ASes announcing only one prefix:               12
AfriNIC Region transit ASes present in the Internet Routing Table:    9
Average AfriNIC Region AS path length visible:                      4.2
    Max AfriNIC Region AS path length visible:                        9
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   13
Number of AfriNIC addresses announced to Internet:               823296
    Equivalent to 0 /8s, 12 /16s and 144 /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         578       2156     458  SINET-AS Research Organization of Infor
  7497         427        177      19  CSTNET-AS-AP Computer Network Informati
  4538         187       4192      73  ERX-CERNET-BKB China Education and Rese
  7575         175        329     121  AARNET-AS-AP Australian Academic and Re
 58647         175         18       2  KAGAWAU-AS Kagawa University, JP
 55824         115         18      11  NKN-CORE-NW NKN Core Network, IN
  2697          54          3      32  ERX-ERNET-AS Education and Research Net
 45773          48          3       5  HECPERN-AS-PK PERN AS Content Servie Pr
132524          44          9      11  TIFR-AS Tata Institute of Fundamental R
  9270          33          5       6  APAN-KR-AS National Infomation Society 

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   376         202        178     151  RISQ-AS, CA
  5786         198         16       1  UPRENET, PR
  2152         155        507      90  CSUNET-NW, US
 18558         137         18       4  NETBLK-RCOEK, US
   270         120        329      85  AS270, US
 23024         113          7      19  OCDE, US
  2920         111         34       7  LACOE, US
 32531          90          6      60  FORDHAM-UNIVERSITY, US
 21976          87         51      18  NJEDGE-NET, US
  1736          81         16       1  MU-AS, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         281       1935     249  DFN Verein zur Foerderung eines Deutsch
   786         186       1775     183  JANET Jisc Services Limited, GB
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103         100       1520      87  SURFNET-NL SURFnet, The Netherlands, NL
  2614          95         27      75  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
  2200          64        599      59  FR-RENATER Reseau National de telecommu
  1930          58         81      53  RCCN Fundacao para a Ciencia e a Tecnol
200521          52          4      20  SEAP-AGE, ES
  1653          50        151      47  SUNET SUNET Swedish University Network,

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         155        198      46  Rede Nacional de Ensino e Pesquisa, BR
 11340          96         24      54  Red Universitaria Nacional, CL
  1251          58         37      19  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
 61468          46          3      15  CEDIA, EC
 28571          39         39      17  UNIVERSIDADE DE SAO PAULO, BR
  2715          35        100      31  Fundacao Carlos Chagas Filho de Amparo 
263683          32         10      20  Universidad de Costa Rica, CR
 20191          31         16       1  Pontificia Universidad Catolica de Chil
271640          27          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
  3597          23          2      17  Fundacion InnovaT, AR

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 36914         246         82       3  KENET-AS, KE
  2561          67          4      32  EUN, EG
327687          39         28       3  RENU, UG
327700          31         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37182          18          1      14  TERNET, TZ
 37654          10          1       6  RwEdNet-AS, RW
 37215           5          8       1  MAREN, MW
 30983           4          4       1  MARWAN-AS, MA
 31960           4          1       1  EMUNET, MZ

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         578       2156     458  SINET-AS Research Organization of Infor
  7497         427        177      19  CSTNET-AS-AP Computer Network Informati
   680         281       1935     249  DFN Verein zur Foerderung eines Deutsch
 36914         246         82       3  KENET-AS, KE
   376         202        178     151  RISQ-AS, CA
  5786         198         16       1  UPRENET, PR
  4538         187       4192      73  ERX-CERNET-BKB China Education and Rese
   786         186       1775     183  JANET Jisc Services Limited, GB
  7575         175        329     121  AARNET-AS-AP Australian Academic and Re
 58647         175         18       2  KAGAWAU-AS Kagawa University, JP

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

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

   ASN  No of nets  Net Savings  Description
  7497         427          408  CSTNET-AS-AP Computer Network Information Cente
 36914         246          243  KENET-AS, KE
  5786         198          197  UPRENET, PR
 58647         175          173  KAGAWAU-AS Kagawa University, JP
 18558         137          133  NETBLK-RCOEK, US
  4538         187          114  ERX-CERNET-BKB China Education and Research Net
  1916         155          109  Rede Nacional de Ensino e Pesquisa, BR
 55824         115          104  NKN-CORE-NW NKN Core Network, IN
  2920         111          104  LACOE, US
 23024         113           94  OCDE, US

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     22063  UNALLOCATED  153.10.0.0/16             2152  CSUNET-NW, US
     33008  UNALLOCATED  162.248.66.0/24          11096  FLORIDANET, US
    395514  UNALLOCATED  205.213.88.0/24           2381  WISCNET1-AS, US
    394607  UNALLOCATED  216.100.93.0/24          23024  OCDE, US

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

Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             1103  SURFNET-NL SURFnet, The Netherlands, NL

Complete listing at https://bgp.nsrc.org/REN/ASREN/data-spar

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

Unassigned Network     ASN Information  AS Name
192.31.196.0/24      Origin:       112  UNASSIGNED
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24       Origin:      1103  SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24      Transit:     20965  GEANT The GEANT IP Service, NL

Complete listing at https://bgp.nsrc.org/REN/ASREN/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       /11:0       /12:9       
/13:17      /14:33      /15:100     /16:1552    /17:255     /18:278     
/19:382     /20:573     /21:606     /22:956     /23:1091    /24:6793    
/25:55      /26:52      /27:75      /28:0       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         233         246  KENET-AS, KE
 23024          53         113  OCDE, US
 32440          50          53  LONI, US
200521          31          52  SEAP-AGE, ES
 25977          28          31  HCCS, US
327700          26          31  MoRENet, MZ
 31638          21          21  ASN-LEPIDA, IT
  1916          19         155  Rede Nacional de Ensino e Pesquisa, BR
  3233          19          29  ICI-ROTLD Romanian National R&D Network, RO
 22742          18          67  CT-EDU-NET, US

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

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

   5:15        8:2        12:1        14:86       24:2        31:1      
  35:4        38:4        40:1        41:126      42:11       44:4      
  45:21       46:5        49:10       58:11       59:10       60:4      
  61:2        62:6        64:17       65:1        66:4        67:33     
  68:1        69:12       70:2        72:7        74:8        76:8      
  77:3        78:3        79:10       80:7        81:27       82:1      
  83:6        84:6        85:23       86:3        87:1        88:1      
  89:10       91:35       93:4        94:2        95:4        96:5      
 101:4       102:8       103:234     104:68      108:3       109:3      
 110:2       111:16      114:1       116:6       118:18      119:22     
 121:28      122:8       123:8       124:39      125:1       128:62     
 129:27      130:85      131:66      132:50      133:146     134:67     
 136:197     137:41      138:11      139:4       140:30      141:1      
 142:19      143:19      144:23      145:2       146:115     147:19     
 148:7       149:12      150:99      151:2       152:29      153:6      
 154:5       155:34      156:66      157:20      158:39      159:114    
 160:26      161:17      162:12      163:70      164:6       165:12     
 167:11      168:32      169:8       170:12      172:2       173:6      
 175:25      177:4       179:9       180:17      181:1       182:4      
 185:31      186:2       187:3       188:12      190:34      191:1      
 192:1092    193:274     194:92      195:79      196:23      197:147    
 198:322     199:186     200:190     201:22      202:354     203:181    
 204:288     205:96      206:139     207:135     208:53      209:94     
 210:84      212:45      213:2       216:48      217:10      219:11     
 220:3       222:4       223:6      

End of report


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