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

REN Routing Table Report cscora at frr.nsrc.org
Fri May 6 22:05:36 UTC 2022


IPv4 R&E Routing Table Report   22:05 GMT Fri 06 May, 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:                               22052
    Prefixes after maximum aggregation (per Origin AS):           12528
    Deaggregation factor:                                          1.76
    Unique aggregates announced (without unneeded subnets):       14397
    Number of IPv4 prefixes with a valid ROA:                      7381
    Number of IPv4 prefixes with an invalid ROA:                     20
    Number of IPv4 prefixes with no ROA:                          14651
Total ASes present in the Internet Routing Table:                  2784
    Prefixes per ASN:                                              7.92
Origin-only ASes present in the Internet Routing Table:            2402
Origin ASes announcing only one prefix:                            1088
Transit ASes present in the Internet Routing Table:                 382
Transit-only ASes present in the Internet Routing Table:             57
Average AS path length visible in the Internet Routing Table:       4.1
    Max AS path length visible:                                      16
    Max AS path prepend of ASN (  1149)                              11
Prefixes from unregistered ASNs in the Routing Table:                 8
    Number of instances of unregistered ASNs:                         8
Number of 32-bit ASNs allocated by the RIRs:                      39310
Number of 32-bit ASNs visible in the Routing Table:                 625
Prefixes from 32-bit ASNs in the Routing Table:                    1704
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:              5
Number of addresses announced to Internet:                    287983872
    Equivalent to 17 /8s, 42 /16s and 73 /24s
    Percentage of available address space announced:                7.8
    Percentage of allocated address space announced:                7.8
    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:        2559

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

Prefixes being announced by APNIC Region ASes:                     4642
    Total APNIC prefixes after maximum aggregation:                2291
    APNIC Deaggregation factor:                                    2.03
Prefixes being announced from the APNIC address blocks:            4718
    Unique aggregates announced from the APNIC address blocks:     2675
APNIC Region origin ASes present in the Internet Routing Table:     578
    APNIC Prefixes per ASN:                                        8.16
APNIC Region origin ASes announcing only one prefix:                245
APNIC Region transit ASes present in the Internet Routing Table:     70
Average APNIC Region AS path length visible:                        4.4
    Max APNIC Region AS path length visible:                         16
Number of APNIC region 32-bit ASNs visible in the Routing Table:    225
Number of APNIC addresses announced to Internet:               46658816
    Equivalent to 2 /8s, 199 /16s and 245 /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:                     11598
    Total ARIN prefixes after maximum aggregation:                 6652
    ARIN Deaggregation factor:                                     1.74
Prefixes being announced from the ARIN address blocks:            11400
    Unique aggregates announced from the ARIN address blocks:      7712
ARIN Region origin ASes present in the Internet Routing Table:     1259
    ARIN Prefixes per ASN:                                         9.05
ARIN Region origin ASes announcing only one prefix:                 449
ARIN Region transit ASes present in the Internet Routing Table:     162
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     175
Number of ARIN addresses announced to Internet:               174348544
    Equivalent to 10 /8s, 100 /16s and 89 /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:                      3472
    Total RIPE prefixes after maximum aggregation:                 2824
    RIPE Deaggregation factor:                                     1.23
Prefixes being announced from the RIPE address blocks:             3595
    Unique aggregates announced from the RIPE address blocks:      2953
RIPE Region origin ASes present in the Internet Routing Table:      670
    RIPE Prefixes per ASN:                                         5.37
RIPE Region origin ASes announcing only one prefix:                 305
RIPE Region transit ASes present in the Internet Routing Table:      98
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:     133
Number of RIPE addresses announced to Internet:                59489536
    Equivalent to 3 /8s, 139 /16s and 189 /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:                    1407
    Total LACNIC prefixes after maximum aggregation:                566
    LACNIC Deaggregation factor:                                   2.49
Prefixes being announced from the LACNIC address blocks:           1408
    Unique aggregates announced from the LACNIC address blocks:     767
LACNIC Region origin ASes present in the Internet Routing Table:    166
    LACNIC Prefixes per ASN:                                       8.48
LACNIC Region origin ASes announcing only one prefix:                68
LACNIC Region transit ASes present in the Internet Routing Table:    23
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:               4677888
    Equivalent to 0 /8s, 71 /16s and 97 /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:                    925
    Total AfriNIC prefixes after maximum aggregation:               187
    AfriNIC Deaggregation factor:                                  4.95
Prefixes being announced from the AfriNIC address blocks:           926
    Unique aggregates announced from the AfriNIC address blocks:    285
AfriNIC Region origin ASes present in the Internet Routing Table:    48
    AfriNIC Prefixes per ASN:                                     19.29
AfriNIC Region origin ASes announcing only one prefix:               21
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      3.7
    Max AfriNIC Region AS path length visible:                       10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   26
Number of AfriNIC addresses announced to Internet:              2807808
    Equivalent to 0 /8s, 42 /16s and 216 /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       2140     457  SINET-AS Research Organization of Infor
  7497         432        182      24  CSTNET-AS-AP Computer Network Informati
  1237         187         74     135  KREONET-AS-KR KISTI, KR
  7575         177        330     123  AARNET-AS-AP Australian Academic and Re
 58647         167         18       2  KAGAWAU-AS Kagawa University, JP
  4538         129       4192      73  ERX-CERNET-BKB China Education and Rese
 55824         115         18      11  NKN-CORE-NW NKN Core Network, IN
  4621          79         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        2507       4351    1069  AMAZON-02, US
 14618         595       3988     455  AMAZON-AES, US
   668         210        702     178  DNIC-AS-00668, US
  8075         206      10877     186  MICROSOFT-CORP-MSN-AS-BLOCK, US
   376         202        178     151  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  2152         152        507      90  CSUNET-NW, US
 18558         135         18       4  NETBLK-RCOEK, US
   270         120        329      88  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         281       1966     248  DFN Verein zur Foerderung eines Deutsch
   786         185       1758     182  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          99       1520      86  SURFNET-NL SURFnet, The Netherlands, NL
  2614          96         27      76  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
   553          73        449      73  BELWUE BelWue-Koordination, DE
  2200          65        631      60  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         156        208      45  Rede Nacional de Ensino e Pesquisa, BR
 28391         152         10      66  Universidad Juarez Autonoma de Tabasco,
 11340          94         24      54  Red Universitaria Nacional, CL
  1251          60         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  2715          58        102      38  Fundacao Carlos Chagas Filho de Amparo 
 19611          45         17       2  Associacao Antonio Vieira - Unisinos, B
  4270          43         16       1  Red de Interconexion Universitaria, AR
 61468          41          3      15  CEDIA, EC
 28614          37          2       2  Fundacao Universidade Regional de Blume
263282          37          5      12  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA

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         375        319      74  TENET-1, ZA
 36914         211         82       3  KENET-AS, KE
  2561          67          4      32  EUN, EG
  8094          50         48       4  PUKNET, ZA
327687          38         28       3  RENU, UG
327700          36         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37182          18          8       1  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        2507       4351    1069  AMAZON-02, US
 14618         595       3988     455  AMAZON-AES, US
  2907         578       2140     457  SINET-AS Research Organization of Infor
  7497         432        182      24  CSTNET-AS-AP Computer Network Informati
  2018         375        319      74  TENET-1, ZA
   680         281       1966     248  DFN Verein zur Foerderung eines Deutsch
 36914         211         82       3  KENET-AS, KE
   668         210        702     178  DNIC-AS-00668, US
  8075         206      10877     186  MICROSOFT-CORP-MSN-AS-BLOCK, US
   376         202        178     151  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         432          408  CSTNET-AS-AP Computer Network Information Cente
  2018         375          301  TENET-1, ZA
 36914         211          208  KENET-AS, KE
  5786         200          199  UPRENET, PR
 58647         167          165  KAGAWAU-AS Kagawa University, JP
 14618         595          140  AMAZON-AES, US
  8895         138          134  ISU Internet Services Unit ISU, SA
 18558         135          131  NETBLK-RCOEK, US
  2907         578          121  SINET-AS Research Organization of Information a
  1916         156          111  Rede Nacional de Ensino e Pesquisa, BR

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
     14212  UNALLOCATED  198.189.240.0/24          2152  CSUNET-NW, US
     19658  UNALLOCATED  199.27.241.0/24          11096  FLORIDANET, US
     14212  UNALLOCATED  205.155.0.0/19            2152  CSUNET-NW, US
     14212  UNALLOCATED  205.155.240.0/20          2152  CSUNET-NW, 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
103.151.24.0/24      Origin:     16509  AMAZON-02, US
103.151.24.0/24     Transit:      2152  CSUNET-NW, US
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       /11:7       /12:28      
/13:34      /14:81      /15:199     /16:2141    /17:464     /18:476     
/19:612     /20:1014    /21:989     /22:1596    /23:1735    /24:12671   
/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         362        2507  AMAZON-02, US
 36914         198         211  KENET-AS, KE
 14618         196         595  AMAZON-AES, US
  8895         133         138  ISU Internet Services Unit ISU, SA
 23024          53         114  OCDE, US
327700          32          36  MoRENet, MZ
 25977          31          45  HCCS, US
 28614          31          37  Fundacao Universidade Regional de Blumenau, BR
 32440          30          45  LONI, US
263282          30          37  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN

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       15:60       16:2        18:52     
  23:46       24:3        31:6        35:6        37:7        38:9      
  40:4        41:128      42:10       44:5        45:51       46:11     
  47:1        49:10       50:11       52:724      54:235      58:1      
  59:20       60:4        61:3        62:7        63:42       64:141    
  65:9        66:71       67:62       68:17       69:45       70:28     
  71:9        72:18       74:41       76:39       77:9        78:3      
  79:10       80:17       81:28       82:5        83:6        84:4      
  85:43       86:4        87:1        88:1        89:12       91:53     
  93:10       94:4        95:4        96:6        97:1        98:11     
  99:50      101:6       102:13      103:349     104:108     107:18     
 108:20      109:12      110:4       111:17      114:23      116:7      
 117:61      118:32      119:23      121:27      122:11      123:8      
 124:39      125:4       128:91      129:45      130:146     131:97     
 132:58      133:140     134:98      135:1       136:211     137:88     
 138:10      139:16      140:51      141:5       142:57      143:33     
 144:35      145:2       146:130     147:67      148:200     149:15     
 150:48      151:8       152:81      153:13      154:26      155:62     
 156:69      157:31      158:48      159:149     160:30      161:29     
 162:55      163:75      164:28      165:65      166:1       167:23     
 168:166     169:12      170:126     171:1       172:10      173:18     
 174:1       175:31      176:12      177:14      178:2       179:10     
 180:21      181:1       182:6       184:4       185:59      186:3      
 187:19      188:14      189:5       190:34      191:33      192:1512   
 193:317     194:132     195:81      196:163     197:116     198:534    
 199:329     200:244     201:38      202:637     203:432     204:366    
 205:195     206:216     207:192     208:114     209:137     210:184    
 211:15      212:151     213:16      214:7       216:145     217:11     
 218:22      219:6       220:17      222:5       223:3      

End of report


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