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

REN Routing Table Report cscora at frr.nsrc.org
Tue Jul 19 22:20:39 UTC 2022


IPv4 R&E Routing Table Report   22:20 GMT Tue 19 Jul, 2022

  IPv4 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:                               20111
    Prefixes after maximum aggregation (per Origin AS):           11764
    Deaggregation factor:                                          1.71
    Unique aggregates announced (without unneeded subnets):       13267
    Number of IPv4 prefixes with a valid ROA:                      4519
    Number of IPv4 prefixes with an invalid ROA:                     50
    Number of IPv4 prefixes with no ROA:                          15542
Total ASes present in the Internet Routing Table:                  3026
    Prefixes per ASN:                                              6.65
Origin-only ASes present in the Internet Routing Table:            2607
Origin ASes announcing only one prefix:                            1185
Transit ASes present in the Internet Routing Table:                 419
Transit-only ASes present in the Internet Routing Table:             73
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       3.9
    Max AS path length visible:                                      17
    Max AS path prepend of ASN ( 53263)                              11
Prefixes from unregistered ASNs in the Routing Table:                24
    Number of instances of unregistered ASNs:                        24
Number of 32-bit ASNs allocated by the RIRs:                      39815
Number of 32-bit ASNs visible in the Routing Table:                 676
Prefixes from 32-bit ASNs in the Routing Table:                    1866
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:                    180736512
    Equivalent to 10 /8s, 197 /16s and 210 /24s
    Percentage of available address space announced:                4.9
    Percentage of allocated address space announced:                4.9
    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:        2670

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

Prefixes being announced by APNIC Region ASes:                     4556
    Total APNIC prefixes after maximum aggregation:                2260
    APNIC Deaggregation factor:                                    2.02
Prefixes being announced from the APNIC address blocks:            4543
    Unique aggregates announced from the APNIC address blocks:     2601
APNIC Region origin ASes present in the Internet Routing Table:     563
    APNIC Prefixes per ASN:                                        8.07
APNIC Region origin ASes announcing only one prefix:                240
APNIC Region transit ASes present in the Internet Routing Table:     67
Average APNIC Region AS path length visible:                        4.2
    Max APNIC Region AS path length visible:                         16
Number of APNIC region 32-bit ASNs visible in the Routing Table:    217
Number of APNIC addresses announced to Internet:               36117504
    Equivalent to 2 /8s, 39 /16s and 28 /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:                      9811
    Total ARIN prefixes after maximum aggregation:                 5969
    ARIN Deaggregation factor:                                     1.64
Prefixes being announced from the ARIN address blocks:             9756
    Unique aggregates announced from the ARIN address blocks:      6778
ARIN Region origin ASes present in the Internet Routing Table:     1514
    ARIN Prefixes per ASN:                                         6.44
ARIN Region origin ASes announcing only one prefix:                 555
ARIN Region transit ASes present in the Internet Routing Table:     206
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          17
Number of ARIN region 32-bit ASNs visible in the Routing Table:     235
Number of ARIN addresses announced to Internet:                83376128
    Equivalent to 4 /8s, 248 /16s and 56 /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:                      3442
    Total RIPE prefixes after maximum aggregation:                 2797
    RIPE Deaggregation factor:                                     1.23
Prefixes being announced from the RIPE address blocks:             3535
    Unique aggregates announced from the RIPE address blocks:      2916
RIPE Region origin ASes present in the Internet Routing Table:      663
    RIPE Prefixes per ASN:                                         5.33
RIPE Region origin ASes announcing only one prefix:                 304
RIPE Region transit ASes present in the Internet Routing Table:      94
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:     134
Number of RIPE addresses announced to Internet:                54381824
    Equivalent to 3 /8s, 61 /16s and 205 /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:                    1394
    Total LACNIC prefixes after maximum aggregation:                555
    LACNIC Deaggregation factor:                                   2.51
Prefixes being announced from the LACNIC address blocks:           1391
    Unique aggregates announced from the LACNIC address blocks:     745
LACNIC Region origin ASes present in the Internet Routing Table:    160
    LACNIC Prefixes per ASN:                                       8.69
LACNIC Region origin ASes announcing only one prefix:                63
LACNIC Region transit ASes present in the Internet Routing Table:    24
Average LACNIC Region AS path length visible:                       4.4
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    66
Number of LACNIC addresses announced to Internet:               4219648
    Equivalent to 0 /8s, 64 /16s and 99 /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:                    884
    Total AfriNIC prefixes after maximum aggregation:               170
    AfriNIC Deaggregation factor:                                  5.20
Prefixes being announced from the AfriNIC address blocks:           884
    Unique aggregates announced from the AfriNIC address blocks:    225
AfriNIC Region origin ASes present in the Internet Routing Table:    47
    AfriNIC Prefixes per ASN:                                     18.81
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:                      3.2
    Max AfriNIC Region AS path length visible:                       10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   24
Number of AfriNIC addresses announced to Internet:              2640896
    Equivalent to 0 /8s, 40 /16s and 76 /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         568       2124     451  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         176        330     122  AARNET-AS-AP Australian Academic and Re
 58647         175         18       2  KAGAWAU-AS Kagawa University, JP
 55824         115         18      10  NKN-CORE-NW NKN Core Network, IN
  4538         110       2367      69  ERX-CERNET-BKB China Education and Rese
  4621          75         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
   668         213        718     176  DNIC-AS-00668, US
   376         203        178     152  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
 18530         182         29     139  ISOMEDIA-1, US
  2152         151        507      88  CSUNET-NW, US
 18558         134         18       4  NETBLK-RCOEK, US
 11404         124        177     105  AS-WAVE-1, US
   270         118        329      87  AS270, US
 23024         114          7      17  OCDE, US
  2920         108         34       7  LACOE, 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         283       1951     250  DFN Verein zur Foerderung eines Deutsch
   786         186       1774     183  JANET Jisc Services Limited, GB
  8895         137         24       3  ISU Internet Services Unit ISU, SA
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          97       1264      85  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          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/ESnet/data-ASnet-RIPE

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         152        207      39  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          64         37      19  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  2715          59        102      39  Fundacao Carlos Chagas Filho de Amparo 
  4270          43         16       1  Red de Interconexion Universitaria, AR
 28571          41         40      18  UNIVERSIDADE DE SAO PAULO, BR
 61468          41          3      15  CEDIA, EC
 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/ESnet/data-ASnet-LACNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         376        319      72  TENET-1, ZA
 36914         230         82       3  KENET-AS, KE
  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          8       1  TERNET, TZ
 37074          13          8       2  UG-AS, GH
 37501          11         49       6  UOFS, ZA
 37654          10          1       6  RwEdNet-AS, RW

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         568       2124     451  SINET-AS Research Organization of Infor
  7497         432        182      24  CSTNET-AS-AP Computer Network Informati
  2018         376        319      72  TENET-1, ZA
   680         283       1951     250  DFN Verein zur Foerderung eines Deutsch
 36914         230         82       3  KENET-AS, KE
   668         213        718     176  DNIC-AS-00668, US
   376         203        178     152  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  1237         187         74     135  KREONET-AS-KR KISTI, KR
   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         376          304  TENET-1, ZA
 36914         230          227  KENET-AS, KE
  5786         200          199  UPRENET, PR
 58647         175          173  KAGAWAU-AS Kagawa University, JP
  8895         137          134  ISU Internet Services Unit ISU, SA
 18558         134          130  NETBLK-RCOEK, US
  1916         152          113  Rede Nacional de Ensino e Pesquisa, BR
 55824         115          105  NKN-CORE-NW NKN Core Network, IN
  2920         108          101  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      /15:122     /16:2048    /17:422     /18:454     
/19:613     /20:952     /21:991     /22:1639    /23:1754    /24:11080   
/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         217         230  KENET-AS, KE
  8895         132         137  ISU Internet Services Unit ISU, SA
 30041          80          82  RACE, US
 18530          56         182  ISOMEDIA-1, US
 23024          53         114  OCDE, US
 19194          43          45  JOVITA, US
 25977          31          45  HCCS, US
 28614          31          37  Fundacao Universidade Regional de Blumenau, BR
 46115          31          33  LUTHER, US
200521          31          52  SEAP-AGE, ES

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

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

   1:3         5:15        6:4         8:6        12:1        14:86     
  18:46       23:44       24:6        31:7        35:5        37:9      
  38:30       40:1        41:129      42:10       44:6        45:49     
  46:6        47:1        49:10       50:12       52:6        58:1      
  59:20       60:4        61:3        62:5        63:102      64:130    
  65:24       66:54       67:64       68:18       69:53       70:1      
  71:1        72:50       74:64       76:44       77:7        78:3      
  79:10       80:14       81:28       82:6        83:6        84:5      
  85:40       86:2        87:6        88:1        89:10       91:41     
  93:12       94:6        95:4        96:5        97:1        98:4      
 101:6       102:12      103:300     104:114     107:31      108:9      
 109:5       110:4       111:16      114:23      116:6       117:61     
 118:32      119:24      121:27      122:8       123:8       124:39     
 125:5       128:86      129:43      130:94      131:65      132:58     
 133:145     134:101     136:199     137:77      138:9       139:5      
 140:50      141:2       142:53      143:31      144:25      145:2      
 146:221     147:61      148:193     149:12      150:42      151:9      
 152:84      153:13      154:29      155:55      156:67      157:28     
 158:41      159:116     160:30      161:61      162:47      163:61     
 164:15      165:55      166:3       167:16      168:124     169:10     
 170:72      172:6       173:12      174:8       175:31      177:11     
 179:9       180:19      182:4       184:4       185:42      186:3      
 187:19      188:14      189:3       190:33      191:36      192:1536   
 193:261     194:127     195:61      196:162     197:134     198:561    
 199:338     200:226     201:38      202:615     203:437     204:403    
 205:138     206:218     207:183     208:126     209:139     210:178    
 211:13      212:173     213:5       214:7       216:102     217:11     
 218:22      219:6       220:17      222:5       223:3      

End of report


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