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

REN Routing Table Report cscora at frr.nsrc.org
Thu Sep 1 22:05:42 UTC 2022


IPv4 R&E Routing Table Report   22:05 GMT Thu 01 Sep, 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:                               22463
    Prefixes after maximum aggregation (per Origin AS):           12774
    Deaggregation factor:                                          1.76
    Unique aggregates announced (without unneeded subnets):       14719
    Number of IPv4 prefixes with a valid ROA:                      7827
    Number of IPv4 prefixes with an invalid ROA:                     39
    Number of IPv4 prefixes with no ROA:                          14597
Total ASes present in the Internet Routing Table:                  2814
    Prefixes per ASN:                                              7.98
Origin-only ASes present in the Internet Routing Table:            2433
Origin ASes announcing only one prefix:                            1095
Transit ASes present in the Internet Routing Table:                 381
Transit-only ASes present in the Internet Routing Table:             64
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:                 5
    Number of instances of unregistered ASNs:                         5
Number of 32-bit ASNs allocated by the RIRs:                      40105
Number of 32-bit ASNs visible in the Routing Table:                 643
Prefixes from 32-bit ASNs in the Routing Table:                    1793
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:                    292175872
    Equivalent to 17 /8s, 106 /16s and 64 /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:        2710

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

Prefixes being announced by APNIC Region ASes:                     4610
    Total APNIC prefixes after maximum aggregation:                2304
    APNIC Deaggregation factor:                                    2.00
Prefixes being announced from the APNIC address blocks:            4703
    Unique aggregates announced from the APNIC address blocks:     2703
APNIC Region origin ASes present in the Internet Routing Table:     587
    APNIC Prefixes per ASN:                                        8.01
APNIC Region origin ASes announcing only one prefix:                261
APNIC Region transit ASes present in the Internet Routing Table:     67
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:    229
Number of APNIC addresses announced to Internet:               46868736
    Equivalent to 2 /8s, 203 /16s and 41 /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:                     11935
    Total ARIN prefixes after maximum aggregation:                 6828
    ARIN Deaggregation factor:                                     1.75
Prefixes being announced from the ARIN address blocks:            11669
    Unique aggregates announced from the ARIN address blocks:      7845
ARIN Region origin ASes present in the Internet Routing Table:     1274
    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:     165
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:     185
Number of ARIN addresses announced to Internet:               174654976
    Equivalent to 10 /8s, 105 /16s and 6 /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:                      3522
    Total RIPE prefixes after maximum aggregation:                 2845
    RIPE Deaggregation factor:                                     1.24
Prefixes being announced from the RIPE address blocks:             3691
    Unique aggregates announced from the RIPE address blocks:      3063
RIPE Region origin ASes present in the Internet Routing Table:      676
    RIPE Prefixes per ASN:                                         5.46
RIPE Region origin ASes announcing only one prefix:                 305
RIPE Region transit ASes present in the Internet Routing Table:      96
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:     136
Number of RIPE addresses announced to Internet:                63083776
    Equivalent to 3 /8s, 194 /16s and 149 /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:                    1437
    Total LACNIC prefixes after maximum aggregation:                582
    LACNIC Deaggregation factor:                                   2.47
Prefixes being announced from the LACNIC address blocks:           1440
    Unique aggregates announced from the LACNIC address blocks:     799
LACNIC Region origin ASes present in the Internet Routing Table:    160
    LACNIC Prefixes per ASN:                                       9.00
LACNIC Region origin ASes announcing only one prefix:                59
LACNIC Region transit ASes present in the Internet Routing Table:    25
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:    67
Number of LACNIC addresses announced to Internet:               4806912
    Equivalent to 0 /8s, 73 /16s and 89 /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:                    954
    Total AfriNIC prefixes after maximum aggregation:               210
    AfriNIC Deaggregation factor:                                  4.54
Prefixes being announced from the AfriNIC address blocks:           956
    Unique aggregates announced from the AfriNIC address blocks:    305
AfriNIC Region origin ASes present in the Internet Routing Table:    48
    AfriNIC Prefixes per ASN:                                     19.92
AfriNIC Region origin ASes announcing only one prefix:               23
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   26
Number of AfriNIC addresses announced to Internet:              2760448
    Equivalent to 0 /8s, 42 /16s and 31 /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         433        182      24  CSTNET-AS-AP Computer Network Informati
  1237         186         74     135  KREONET-AS-KR KISTI, KR
  7575         175        329     121  AARNET-AS-AP Australian Academic and Re
 58647         175         18       2  KAGAWAU-AS Kagawa University, JP
  4538         127       4176      72  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        2645       4366    1130  AMAZON-02, US
 14618         631       3992     484  AMAZON-AES, US
  8075         267      11728     230  MICROSOFT-CORP-MSN-AS-BLOCK, US
   668         221        703     181  DNIC-AS-00668, US
   376         203        178     152  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  2152         154        507      92  CSUNET-NW, US
 18558         137         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          98       1520      86  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         241         82       3  KENET-AS, KE
  2561          67          4      32  EUN, EG
  8094          48         48      15  PUKNET, ZA
327687          40         28       3  RENU, UG
327700          34         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37182          15          1      11  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        2645       4366    1130  AMAZON-02, US
 14618         631       3992     484  AMAZON-AES, US
  2907         566       2156     455  SINET-AS Research Organization of Infor
  7497         433        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         267      11728     230  MICROSOFT-CORP-MSN-AS-BLOCK, US
 36914         241         82       3  KENET-AS, KE
   668         221        703     181  DNIC-AS-00668, US
   376         203        178     152  RISQ-AS, CA

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         433          409  CSTNET-AS-AP Computer Network Information Cente
  2018         376          303  TENET-1, ZA
 36914         241          238  KENET-AS, KE
  5786         200          199  UPRENET, PR
 58647         175          173  KAGAWAU-AS Kagawa University, JP
 14618         631          147  AMAZON-AES, US
  8895         138          134  ISU Internet Services Unit ISU, SA
 18558         137          133  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
     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     /16:2151    /17:470     /18:478     
/19:622     /20:1014    /21:1012    /22:1606    /23:1762    /24:12992   
/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         383        2645  AMAZON-02, US
 36914         228         241  KENET-AS, KE
 14618         210         631  AMAZON-AES, US
  8895         133         138  ISU Internet Services Unit ISU, SA
 23024          53         114  OCDE, US
  8075          37         267  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         3:83        4:2         5:16        6:4         8:2      
  12:1        13:99       14:86       15:66       16:2        18:59     
  23:50       24:3        31:7        35:12       37:1        38:9      
  40:2        41:126      42:10       44:5        45:50       46:10     
  47:1        49:10       50:10       52:743      54:236      58:2      
  59:20       60:4        61:3        62:15       63:42       64:144    
  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       81:28       82:6        83:6        84:4      
  85:47       86:6        87:2        88:1        89:12       91:56     
  92:1        93:4        94:8        95:4        96:6        97:1      
  98:13       99:52      101:6       102:14      103:343     104:105    
 107:17      108:20      109:12      110:4       111:17      113:4      
 114:23      115:1       116:8       117:61      118:32      119:23     
 121:27      122:11      123:8       124:39      125:4       128:86     
 129:45      130:142     131:89      132:59      133:145     134:99     
 135:2       136:213     137:89      138:12      139:17      140:61     
 141:5       142:55      143:35      144:37      145:2       146:131    
 147:66      148:201     149:15      150:138     151:8       152:82     
 153:14      154:28      155:71      156:70      157:31      158:47     
 159:157     160:31      161:30      162:56      163:84      164:21     
 165:65      166:1       167:23      168:164     169:14      170:131    
 172:10      173:19      174:1       175:30      176:12      177:11     
 178:3       179:11      180:18      181:1       182:4       184:2      
 185:74      186:3       187:19      188:14      189:3       190:34     
 191:36      192:1526    193:324     194:135     195:90      196:162    
 197:144     198:541     199:339     200:226     201:38      202:641    
 203:436     204:383     205:157     206:217     207:194     208:118    
 209:140     210:184     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


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