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

REN Routing Table Report cscora at frr.nsrc.org
Fri Jan 14 22:20:28 UTC 2022


IPv4 R&E Routing Table Report   22:20 GMT Fri 14 Jan, 2022

  BGP Table (R&E) as seen at ESnet.

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

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

BGP routing table entries examined:                               18539
    Prefixes after maximum aggregation (per Origin AS):           10731
    Deaggregation factor:                                          1.73
    Unique aggregates announced (without unneeded subnets):       12103
    Number of IPv4 prefixes with a valid ROA:                      3597
    Number of IPv4 prefixes with an invalid ROA:                     14
    Number of IPv4 prefixes with no ROA:                          14928
Total ASes present in the Internet Routing Table:                  2733
    Prefixes per ASN:                                              6.78
Origin-only ASes present in the Internet Routing Table:            2369
Origin ASes announcing only one prefix:                            1087
Transit ASes present in the Internet Routing Table:                 364
Transit-only ASes present in the Internet Routing Table:             51
Average AS path length visible in the Internet Routing Table:       3.8
    Max AS path length visible:                                      14
    Max AS path prepend of ASN ( 53263)                              11
Prefixes from unregistered ASNs in the Routing Table:                21
    Number of instances of unregistered ASNs:                        21
Number of 32-bit ASNs allocated by the RIRs:                      38301
Number of 32-bit ASNs visible in the Routing Table:                 588
Prefixes from 32-bit ASNs in the Routing Table:                    1711
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:                    178345728
    Equivalent to 10 /8s, 161 /16s and 87 /24s
    Percentage of available address space announced:                4.8
    Percentage of allocated address space announced:                4.8
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:        1965

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

Prefixes being announced by APNIC Region ASes:                     4384
    Total APNIC prefixes after maximum aggregation:                2243
    APNIC Deaggregation factor:                                    1.95
Prefixes being announced from the APNIC address blocks:            4385
    Unique aggregates announced from the APNIC address blocks:     2555
APNIC Region origin ASes present in the Internet Routing Table:     544
    APNIC Prefixes per ASN:                                        8.06
APNIC Region origin ASes announcing only one prefix:                236
APNIC Region transit ASes present in the Internet Routing Table:     58
Average APNIC Region AS path length visible:                        4.1
    Max APNIC Region AS path length visible:                         13
Number of APNIC region 32-bit ASNs visible in the Routing Table:    204
Number of APNIC addresses announced to Internet:               36119040
    Equivalent to 2 /8s, 39 /16s and 34 /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:                      8745
    Total ARIN prefixes after maximum aggregation:                 5088
    ARIN Deaggregation factor:                                     1.72
Prefixes being announced from the ARIN address blocks:             8735
    Unique aggregates announced from the ARIN address blocks:      5804
ARIN Region origin ASes present in the Internet Routing Table:     1293
    ARIN Prefixes per ASN:                                         6.76
ARIN Region origin ASes announcing only one prefix:                 466
ARIN Region transit ASes present in the Internet Routing Table:     167
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:     179
Number of ARIN addresses announced to Internet:                81283840
    Equivalent to 4 /8s, 216 /16s and 75 /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:                      3132
    Total RIPE prefixes after maximum aggregation:                 2680
    RIPE Deaggregation factor:                                     1.17
Prefixes being announced from the RIPE address blocks:             3161
    Unique aggregates announced from the RIPE address blocks:      2748
RIPE Region origin ASes present in the Internet Routing Table:      644
    RIPE Prefixes per ASN:                                         4.91
RIPE Region origin ASes announcing only one prefix:                 309
RIPE Region transit ASes present in the Internet Routing Table:      95
Average RIPE Region AS path length visible:                         3.7
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     129
Number of RIPE addresses announced to Internet:                54263552
    Equivalent to 3 /8s, 59 /16s and 255 /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:                    1473
    Total LACNIC prefixes after maximum aggregation:                577
    LACNIC Deaggregation factor:                                   2.55
Prefixes being announced from the LACNIC address blocks:           1472
    Unique aggregates announced from the LACNIC address blocks:     797
LACNIC Region origin ASes present in the Internet Routing Table:    172
    LACNIC Prefixes per ASN:                                       8.56
LACNIC Region origin ASes announcing only one prefix:                70
LACNIC Region transit ASes present in the Internet Routing Table:    24
Average LACNIC Region AS path length visible:                       4.5
    Max LACNIC Region AS path length visible:                        11
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    69
Number of LACNIC addresses announced to Internet:               4192000
    Equivalent to 0 /8s, 63 /16s and 247 /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:                    784
    Total AfriNIC prefixes after maximum aggregation:               133
    AfriNIC Deaggregation factor:                                  5.89
Prefixes being announced from the AfriNIC address blocks:           784
    Unique aggregates announced from the AfriNIC address blocks:    197
AfriNIC Region origin ASes present in the Internet Routing Table:    25
    AfriNIC Prefixes per ASN:                                     31.36
AfriNIC Region origin ASes announcing only one prefix:                6
AfriNIC Region transit ASes present in the Internet Routing Table:    6
Average AfriNIC Region AS path length visible:                      3.0
    Max AfriNIC Region AS path length visible:                        5
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:    7
Number of AfriNIC addresses announced to Internet:              2486784
    Equivalent to 0 /8s, 37 /16s and 242 /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         571       2157     457  SINET-AS Research Organization of Infor
  7497         432        182      24  CSTNET-AS-AP Computer Network Informati
  1237         184         74     135  KREONET-AS-KR KISTI, KR
  7575         177        330     123  AARNET-AS-AP Australian Academic and Re
 58647         165         18       2  KAGAWAU-AS Kagawa University, JP
 55824         115         18      11  NKN-CORE-NW NKN Core Network, IN
  4538         110       2368      69  ERX-CERNET-BKB China Education and Rese
  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/ESnet/data-ASnet-APNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7896         250         51       7  NU-AS, US
   668         212        702     180  DNIC-AS-00668, US
   376         203        178     152  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  2152         147        507      89  CSUNET-NW, US
 18558         134         18       4  NETBLK-RCOEK, US
   270         119        329      88  AS270, US
 23024         114          7      17  OCDE, US
  2920         108         34       6  LACOE, US
 21976          85         51      18  NJEDGE-NET, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         279       1950     245  DFN Verein zur Foerderung eines Deutsch
   786         186       1774     183  JANET Jisc Services Limited, GB
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          97       1264      84  SURFNET-NL SURFnet, The Netherlands, NL
   137          82        677      77  ASGARR Consortium GARR, IT
   553          72        449      72  BELWUE BelWue-Koordination, DE
  2200          67        647      61  FR-RENATER Reseau National de telecommu
  1930          57         81      52  RCCN Fundacao para a Ciencia e a Tecnol
  2614          57         33      55  ROEDUNET, RO
  1653          53        167      50  SUNET SUNET Swedish University Network,

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         176        207      41  Rede Nacional de Ensino e Pesquisa, BR
 28391         152         10      66  Universidad Juarez Autonoma de Tabasco,
 11340          95         24      55  Red Universitaria Nacional, CL
  1251          65         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          44         16       1  Red de Interconexion Universitaria, AR
 61468          41          3      15  CEDIA, EC
 28614          38          2       2  Fundacao Universidade Regional de Blume
 28571          37         26      15  UNIVERSIDADE DE SAO PAULO, BR

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         350        319      73  TENET-1, ZA
 36914         203         82       3  KENET-AS, KE
  8094          50         48       4  PUKNET, ZA
327700          45         16       1  MoRENet, MZ
327687          37         28       3  RENU, UG
  6879          24          2       9  ENSTINET-, EG
 37182          12          8       1  TERNET, TZ
 37501          11         49       6  UOFS, ZA
 36982           8         33       8  UCT, ZA
  2561           7          0       5  EUN, EG

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         571       2157     457  SINET-AS Research Organization of Infor
  7497         432        182      24  CSTNET-AS-AP Computer Network Informati
  2018         350        319      73  TENET-1, ZA
   680         279       1950     245  DFN Verein zur Foerderung eines Deutsch
  7896         250         51       7  NU-AS, US
   668         212        702     180  DNIC-AS-00668, US
   376         203        178     152  RISQ-AS, CA
 36914         203         82       3  KENET-AS, KE
  5786         200         16       1  UPRENET, PR
   786         186       1774     183  JANET Jisc Services Limited, GB

Complete listing at https://bgp.nsrc.org/REN/ESnet/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         350          277  TENET-1, ZA
  7896         250          243  NU-AS, US
 36914         203          200  KENET-AS, KE
  5786         200          199  UPRENET, PR
 58647         165          163  KAGAWAU-AS Kagawa University, JP
  1916         176          135  Rede Nacional de Ensino e Pesquisa, BR
 18558         134          130  NETBLK-RCOEK, US
 55824         115          104  NKN-CORE-NW NKN Core Network, IN
  2920         108          102  LACOE, US

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     19176  UNALLOCATED  63.81.146.0/24           32278  GETWIRELESS, US
     19176  UNALLOCATED  63.108.136.0/23          32278  GETWIRELESS, US
     19176  UNALLOCATED  63.108.137.0/24          32278  GETWIRELESS, US
     19176  UNALLOCATED  63.108.138.0/24          32278  GETWIRELESS, US
     19176  UNALLOCATED  63.127.160.0/22          32278  GETWIRELESS, US
     19176  UNALLOCATED  63.127.161.0/24          32278  GETWIRELESS, US
     19176  UNALLOCATED  63.127.162.0/24          32278  GETWIRELESS, US
     19176  UNALLOCATED  63.127.163.0/24          32278  GETWIRELESS, US
     19176  UNALLOCATED  63.127.168.0/21          32278  GETWIRELESS, US
     19176  UNALLOCATED  63.127.169.0/24          32278  GETWIRELESS, US

Complete listing at https://bgp.nsrc.org/REN/ESnet/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/ESnet/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:       293  ESNET, US

Complete listing at https://bgp.nsrc.org/REN/ESnet/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        /9:0       /10:0       /11:0       /12:0       
/13:0       /14:36      /15:123     /16:2050    /17:390     /18:427     
/19:558     /20:894     /21:903     /22:1424    /23:1580    /24:10154   
/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
 36914         190         203  KENET-AS, KE
 23024          53         114  OCDE, US
327700          39          45  MoRENet, MZ
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 25977          31          45  HCCS, US
263282          30          37  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
 18632          29          55  VOLCANO-VISION, US
 27609          29          45  USC-UNIVERSITY-HOSPITAL, US
 32440          29          44  LONI, US
 40326          29          33  ECKERD-COLLEGE, US

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

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

   1:4         5:16        6:4         8:5        12:1        14:85     
  15:1        16:3        18:44       23:15       24:3        31:6      
  35:1        37:6        38:12       40:1        41:123      42:8      
  44:5        45:44       46:6        47:1        49:8        50:10     
  52:1        59:4        60:4        61:3        62:6        63:50     
  64:63       65:16       66:54       67:54       68:15       69:44     
  71:1        72:15       74:22       76:35       77:6        78:3      
  79:10       80:16       81:27       82:5        83:7        84:5      
  85:35       87:1        88:1        89:10       91:35       92:1      
  93:19       94:4        95:5        96:5        97:1        98:4      
  99:1       101:6       102:5       103:273     104:81      106:1      
 107:21      108:9       109:6       110:3       111:20      112:4      
 114:23      116:5       117:61      119:22      121:26      123:8      
 124:39      125:5       128:86      129:176     130:95      131:83     
 132:58      133:139     134:102     136:211     137:79      138:8      
 139:5       140:48      141:2       142:41      143:35      144:52     
 145:1       146:153     147:63      148:192     149:14      150:36     
 151:7       152:77      153:11      154:26      155:54      156:68     
 157:26      158:39      159:116     160:29      161:18      162:36     
 163:65      164:24      165:56      166:2       167:18      168:130    
 169:10      170:70      171:1       172:2       173:7       174:1      
 175:31      176:1       177:12      178:1       179:7       180:21     
 181:11      182:6       184:3       185:39      186:3       187:18     
 188:13      189:5       190:47      191:37      192:1458    193:199    
 194:120     195:57      196:149     197:112     198:512     199:290    
 200:253     201:39      202:595     203:414     204:348     205:166    
 206:212     207:174     208:80      209:122     210:176     211:13     
 212:41      213:4       214:7       216:98      217:14      218:25     
 219:6       220:17      222:5       223:3      

End of report


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