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

REN Routing Table Report cscora at frr.nsrc.org
Mon Aug 22 22:05:45 UTC 2022


IPv4 R&E Routing Table Report   22:05 GMT Mon 22 Aug, 2022

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

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

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

BGP routing table entries examined:                               22365
    Prefixes after maximum aggregation (per Origin AS):           12740
    Deaggregation factor:                                          1.76
    Unique aggregates announced (without unneeded subnets):       14665
    Number of IPv4 prefixes with a valid ROA:                      7714
    Number of IPv4 prefixes with an invalid ROA:                     40
    Number of IPv4 prefixes with no ROA:                          14611
Total ASes present in the Internet Routing Table:                  2791
    Prefixes per ASN:                                              8.01
Origin-only ASes present in the Internet Routing Table:            2406
Origin ASes announcing only one prefix:                            1090
Transit ASes present in the Internet Routing Table:                 385
Transit-only ASes present in the Internet Routing Table:             60
Paths with bogon ASNs present in the IPv4 Routing Table:              2
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      16
    Max AS path prepend of ASN ( 10497)                              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:                      40025
Number of 32-bit ASNs visible in the Routing Table:                 624
Prefixes from 32-bit ASNs in the Routing Table:                    1751
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:              4
Number of addresses announced to Internet:                    292009216
    Equivalent to 17 /8s, 103 /16s and 181 /24s
    Percentage of available address space announced:                7.9
    Percentage of allocated address space announced:                7.9
    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:        2714

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

Prefixes being announced by APNIC Region ASes:                     4572
    Total APNIC prefixes after maximum aggregation:                2282
    APNIC Deaggregation factor:                                    2.00
Prefixes being announced from the APNIC address blocks:            4664
    Unique aggregates announced from the APNIC address blocks:     2680
APNIC Region origin ASes present in the Internet Routing Table:     569
    APNIC Prefixes per ASN:                                        8.20
APNIC Region origin ASes announcing only one prefix:                252
APNIC Region transit ASes present in the Internet Routing Table:     68
Average APNIC Region AS path length visible:                        4.1
    Max APNIC Region AS path length visible:                         16
Number of APNIC region 32-bit ASNs visible in the Routing Table:    212
Number of APNIC addresses announced to Internet:               46854912
    Equivalent to 2 /8s, 202 /16s and 243 /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:                     11892
    Total ARIN prefixes after maximum aggregation:                 6811
    ARIN Deaggregation factor:                                     1.75
Prefixes being announced from the ARIN address blocks:            11633
    Unique aggregates announced from the ARIN address blocks:      7816
ARIN Region origin ASes present in the Internet Routing Table:     1270
    ARIN Prefixes per ASN:                                         9.16
ARIN Region origin ASes announcing only one prefix:                 447
ARIN Region transit ASes present in the Internet Routing Table:     166
Average ARIN Region AS path length visible:                         3.6
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     184
Number of ARIN addresses announced to Internet:               174569216
    Equivalent to 10 /8s, 103 /16s and 183 /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:                      3524
    Total RIPE prefixes after maximum aggregation:                 2853
    RIPE Deaggregation factor:                                     1.24
Prefixes being announced from the RIPE address blocks:             3688
    Unique aggregates announced from the RIPE address blocks:      3063
RIPE Region origin ASes present in the Internet Routing Table:      679
    RIPE Prefixes per ASN:                                         5.43
RIPE Region origin ASes announcing only one prefix:                 307
RIPE Region transit ASes present in the Internet Routing Table:     100
Average RIPE Region AS path length visible:                         4.6
    Max RIPE Region AS path length visible:                          15
Number of RIPE region 32-bit ASNs visible in the Routing Table:     137
Number of RIPE addresses announced to Internet:                63080448
    Equivalent to 3 /8s, 194 /16s and 136 /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:                    1424
    Total LACNIC prefixes after maximum aggregation:                576
    LACNIC Deaggregation factor:                                   2.47
Prefixes being announced from the LACNIC address blocks:           1427
    Unique aggregates announced from the LACNIC address blocks:     793
LACNIC Region origin ASes present in the Internet Routing Table:    160
    LACNIC Prefixes per ASN:                                       8.92
LACNIC Region origin ASes announcing only one prefix:                61
LACNIC Region transit ASes present in the Internet Routing Table:    24
Average LACNIC Region AS path length visible:                       5.0
    Max LACNIC Region AS path length visible:                        12
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    66
Number of LACNIC addresses announced to Internet:               4742656
    Equivalent to 0 /8s, 72 /16s and 94 /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:                    947
    Total AfriNIC prefixes after maximum aggregation:               212
    AfriNIC Deaggregation factor:                                  4.47
Prefixes being announced from the AfriNIC address blocks:           949
    Unique aggregates announced from the AfriNIC address blocks:    309
AfriNIC Region origin ASes present in the Internet Routing Table:    48
    AfriNIC Prefixes per ASN:                                     19.77
AfriNIC Region origin ASes announcing only one prefix:               23
AfriNIC Region transit ASes present in the Internet Routing Table:   10
Average AfriNIC Region AS path length visible:                      3.9
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   25
Number of AfriNIC addresses announced to Internet:              2760960
    Equivalent to 0 /8s, 42 /16s and 33 /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         566       2156     455  SINET-AS Research Organization of Infor
  7497         434        182      24  CSTNET-AS-AP Computer Network Informati
  1237         185         74     134  KREONET-AS-KR KISTI, KR
 58647         175         18       2  KAGAWAU-AS Kagawa University, JP
  7575         174        329     120  AARNET-AS-AP Australian Academic and Re
  4538         128       4192      73  ERX-CERNET-BKB China Education and Rese
 55824         115         18      11  NKN-CORE-NW NKN Core Network, IN
  4621          78         37      10  UNINET-AS-AP UNINET-, TH
  4762          65          4       1  MAHIDOL-BORDER-AS Mahidol University, T
 23570          59          5      11  INCHEON-AS-KR UNIVERSITY OF INCHEON, KR

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        2623       4362    1126  AMAZON-02, US
 14618         624       3991     482  AMAZON-AES, US
  8075         263      11728     227  MICROSOFT-CORP-MSN-AS-BLOCK, US
   668         219        703     181  DNIC-AS-00668, US
  5786         200         16       1  UPRENET, PR
   376         197        178     147  RISQ-AS, CA
  2152         152        507      90  CSUNET-NW, US
 18558         136         18       4  NETBLK-RCOEK, US
   270         120        329      85  AS270, US
 23024         114          7      17  OCDE, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         282       1951     250  DFN Verein zur Foerderung eines Deutsch
   786         186       1775     183  JANET Jisc Services Limited, GB
  8895         138         24       4  ISU Internet Services Unit ISU, SA
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          97       1504      85  SURFNET-NL SURFnet, The Netherlands, NL
  2614          95         27      75  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
   553          73        449      73  BELWUE BelWue-Koordination, DE
  2200          64        599      59  FR-RENATER Reseau National de telecommu
  1930          58         81      53  RCCN Fundacao para a Ciencia e a Tecnol

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         158        208      43  Rede Nacional de Ensino e Pesquisa, BR
 28391         152         10      66  Universidad Juarez Autonoma de Tabasco,
 11340          95         24      54  Red Universitaria Nacional, CL
  2715          59        102      39  Fundacao Carlos Chagas Filho de Amparo 
  1251          58         37      19  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  4270          42         16       1  Red de Interconexion Universitaria, AR
 61468          42          3      15  CEDIA, EC
 28571          41         40      18  UNIVERSIDADE DE SAO PAULO, BR
 19611          37         17       2  Associacao Antonio Vieira - Unisinos, B
 28614          37          2       2  Fundacao Universidade Regional de Blume

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         376        319      73  TENET-1, ZA
 36914         232         82       3  KENET-AS, KE
  2561          67          4      32  EUN, EG
  8094          48         48      15  PUKNET, ZA
327687          38         28       3  RENU, UG
327700          34         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37182          19          1      13  TERNET, TZ
 37074          13          8       2  UG-AS, GH
 37501          11         49       6  UOFS, ZA

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        2623       4362    1126  AMAZON-02, US
 14618         624       3991     482  AMAZON-AES, US
  2907         566       2156     455  SINET-AS Research Organization of Infor
  7497         434        182      24  CSTNET-AS-AP Computer Network Informati
  2018         376        319      73  TENET-1, ZA
   680         282       1951     250  DFN Verein zur Foerderung eines Deutsch
  8075         263      11728     227  MICROSOFT-CORP-MSN-AS-BLOCK, US
 36914         232         82       3  KENET-AS, KE
   668         219        703     181  DNIC-AS-00668, US
  5786         200         16       1  UPRENET, PR

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

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

   ASN  No of nets  Net Savings  Description
  7497         434          410  CSTNET-AS-AP Computer Network Information Cente
  2018         376          303  TENET-1, ZA
 36914         232          229  KENET-AS, KE
  5786         200          199  UPRENET, PR
 58647         175          173  KAGAWAU-AS Kagawa University, JP
 14618         624          142  AMAZON-AES, US
  8895         138          134  ISU Internet Services Unit ISU, SA
 18558         136          132  NETBLK-RCOEK, US
  1916         158          115  Rede Nacional de Ensino e Pesquisa, BR
  2907         566          111  SINET-AS Research Organization of Information a

Complete listing at https://bgp.nsrc.org/REN/CENIC/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
     22063  UNALLOCATED  153.10.0.0/16             2152  CSUNET-NW, US
     22226  UNALLOCATED  156.1.0.0/16              2152  CSUNET-NW, US
     19658  UNALLOCATED  199.27.241.0/24          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/CENIC/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/CENIC/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:     11537  INTERNET2-RESEARCH-EDU, US
198.135.168.0/24     Origin:     14618  AMAZON-AES, US
198.135.168.0/24    Transit:     16509  AMAZON-02, US
216.169.147.0/24     Origin:     14618  AMAZON-AES, US
216.169.147.0/24    Transit:     16509  AMAZON-02, US

Complete listing at https://bgp.nsrc.org/REN/CENIC/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       /10:4       /11:8       /12:28      
/13:36      /14:80      /15:199     /16:2149    /17:470     /18:477     
/19:623     /20:1015    /21:1005    /22:1599    /23:1754    /24:12917   
/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
 16509         382        2623  AMAZON-02, US
 36914         219         232  KENET-AS, KE
 14618         207         624  AMAZON-AES, US
  8895         133         138  ISU Internet Services Unit ISU, SA
 23024          53         114  OCDE, US
  8075          37         263  MICROSOFT-CORP-MSN-AS-BLOCK, US
 18632          34          63  VOLCANO-VISION, US
 32440          32          47  LONI, US
 46115          32          35  LUTHER, US
 25977          31          45  HCCS, US

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

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

   1:3         3:81        4:2         5:16        6:4         8:2      
  12:1        13:99       14:85       15:65       16:2        18:54     
  23:49       24:3        31:7        35:10       37:1        38:9      
  40:2        41:131      42:10       44:6        45:51       46:10     
  47:1        49:10       50:10       52:741      54:236      58:2      
  59:20       60:4        61:3        62:15       63:42       64:138    
  65:15       66:62       67:63       68:17       69:46       70:28     
  71:9        72:16       74:74       76:42       77:9        78:4      
  79:10       80:18       81:27       82:7        83:6        84:4      
  85:47       86:6        87:2        88:1        89:12       91:57     
  92:1        93:4        94:8        95:4        96:6        97:1      
  98:13       99:52      101:6       102:13      103:317     104:106    
 107:17      108:20      109:12      110:4       111:17      113:4      
 114:23      115:1       116:8       117:61      118:32      119:24     
 121:27      122:11      123:8       124:39      125:4       128:86     
 129:45      130:143     131:89      132:59      133:145     134:100    
 135:2       136:213     137:88      138:12      139:17      140:57     
 141:5       142:55      143:35      144:37      145:2       146:131    
 147:66      148:201     149:15      150:138     151:8       152:82     
 153:13      154:28      155:71      156:68      157:29      158:47     
 159:156     160:31      161:30      162:55      163:83      164:21     
 165:65      166:1       167:23      168:164     169:14      170:130    
 172:10      173:19      174:1       175:30      176:12      177:11     
 178:3       179:11      180:18      181:1       182:4       184:5      
 185:77      186:3       187:19      188:14      189:3       190:34     
 191:35      192:1527    193:318     194:133     195:90      196:161    
 197:136     198:541     199:334     200:222     201:38      202:640    
 203:440     204:379     205:157     206:214     207:193     208:120    
 209:138     210:183     211:13      212:177     213:16      214:8      
 216:154     217:11      218:22      219:6       220:17      222:5      
 223:4      

End of report


More information about the ren-bgp-stats-all mailing list