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

REN Routing Table Report cscora at frr.nsrc.org
Thu Jun 30 20:00:40 UTC 2022


IPv4 R&E Routing Table Report   20:00 GMT Thu 30 Jun, 2022

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

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

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

BGP routing table entries examined:                               18503
    Prefixes after maximum aggregation (per Origin AS):           10593
    Deaggregation factor:                                          1.75
    Unique aggregates announced (without unneeded subnets):       11736
    Number of IPv4 prefixes with a valid ROA:                      4094
    Number of IPv4 prefixes with an invalid ROA:                     22
    Number of IPv4 prefixes with no ROA:                          14387
Total ASes present in the Internet Routing Table:                  2788
    Prefixes per ASN:                                              6.64
Origin-only ASes present in the Internet Routing Table:            2408
Origin ASes announcing only one prefix:                            1106
Transit ASes present in the Internet Routing Table:                 380
Transit-only ASes present in the Internet Routing Table:             61
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.7
    Max AS path length visible:                                      15
    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:                      39697
Number of 32-bit ASNs visible in the Routing Table:                 636
Prefixes from 32-bit ASNs in the Routing Table:                    1703
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:                    205604096
    Equivalent to 12 /8s, 65 /16s and 69 /24s
    Percentage of available address space announced:                5.6
    Percentage of allocated address space announced:                5.6
    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:        2005

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

Prefixes being announced by APNIC Region ASes:                     4650
    Total APNIC prefixes after maximum aggregation:                2312
    APNIC Deaggregation factor:                                    2.01
Prefixes being announced from the APNIC address blocks:            4652
    Unique aggregates announced from the APNIC address blocks:     2621
APNIC Region origin ASes present in the Internet Routing Table:     591
    APNIC Prefixes per ASN:                                        7.87
APNIC Region origin ASes announcing only one prefix:                260
APNIC Region transit ASes present in the Internet Routing Table:     67
Average APNIC Region AS path length visible:                        3.9
    Max APNIC Region AS path length visible:                         15
Number of APNIC region 32-bit ASNs visible in the Routing Table:    233
Number of APNIC addresses announced to Internet:               46006528
    Equivalent to 2 /8s, 190 /16s and 1 /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:                      8013
    Total ARIN prefixes after maximum aggregation:                 4669
    ARIN Deaggregation factor:                                     1.72
Prefixes being announced from the ARIN address blocks:             8032
    Unique aggregates announced from the ARIN address blocks:      5256
ARIN Region origin ASes present in the Internet Routing Table:     1243
    ARIN Prefixes per ASN:                                         6.46
ARIN Region origin ASes announcing only one prefix:                 453
ARIN Region transit ASes present in the Internet Routing Table:     160
Average ARIN Region AS path length visible:                         5.5
    Max ARIN Region AS path length visible:                          15
Number of ARIN region 32-bit ASNs visible in the Routing Table:     176
Number of ARIN addresses announced to Internet:                94668032
    Equivalent to 5 /8s, 164 /16s and 133 /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:                      3495
    Total RIPE prefixes after maximum aggregation:                 2841
    RIPE Deaggregation factor:                                     1.23
Prefixes being announced from the RIPE address blocks:             3482
    Unique aggregates announced from the RIPE address blocks:      2808
RIPE Region origin ASes present in the Internet Routing Table:      675
    RIPE Prefixes per ASN:                                         5.16
RIPE Region origin ASes announcing only one prefix:                 305
RIPE Region transit ASes present in the Internet Routing Table:      99
Average RIPE Region AS path length visible:                         3.8
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     135
Number of RIPE addresses announced to Internet:                57972736
    Equivalent to 3 /8s, 116 /16s and 152 /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:                    1423
    Total LACNIC prefixes after maximum aggregation:                566
    LACNIC Deaggregation factor:                                   2.51
Prefixes being announced from the LACNIC address blocks:           1419
    Unique aggregates announced from the LACNIC address blocks:     762
LACNIC Region origin ASes present in the Internet Routing Table:    165
    LACNIC Prefixes per ASN:                                       8.60
LACNIC Region origin ASes announcing only one prefix:                65
LACNIC Region transit ASes present in the Internet Routing Table:    23
Average LACNIC Region AS path length visible:                       6.0
    Max LACNIC Region AS path length visible:                        14
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    66
Number of LACNIC addresses announced to Internet:               4306688
    Equivalent to 0 /8s, 65 /16s and 183 /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:                    916
    Total AfriNIC prefixes after maximum aggregation:               199
    AfriNIC Deaggregation factor:                                  4.60
Prefixes being announced from the AfriNIC address blocks:           916
    Unique aggregates announced from the AfriNIC address blocks:    287
AfriNIC Region origin ASes present in the Internet Routing Table:    48
    AfriNIC Prefixes per ASN:                                     19.08
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:                      4.2
    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:              2649600
    Equivalent to 0 /8s, 40 /16s and 110 /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         572       2140     454  SINET-AS Research Organization of Infor
  7497         433        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
  4538         128       4192      73  ERX-CERNET-BKB China Education and Rese
 55824         116         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/SingAREN/data-ASnet-APNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   668         208        702     176  DNIC-AS-00668, US
   376         204        178     153  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
  2152         155        507      91  CSUNET-NW, US
 18558         134         18       4  NETBLK-RCOEK, US
 23024         114          7      17  OCDE, US
  2920         108         34       7  LACOE, US
 32531          91         16       1  FORDHAM-UNIVERSITY, US
 21976          85         51      18  NJEDGE-NET, US
     3          81        496      15  MIT-GATEWAYS, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         285       1967     251  DFN Verein zur Foerderung eines Deutsch
   786         187       1775     184  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          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/SingAREN/data-ASnet-RIPE

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         158        208      44  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          58         37      19  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  2715          58        102      38  Fundacao Carlos Chagas Filho de Amparo 
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, B
  4270          42         16       1  Red de Interconexion Universitaria, AR
 28571          41         40      18  UNIVERSIDADE DE SAO PAULO, BR
 61468          41          3      15  CEDIA, EC
 28614          37          2       2  Fundacao Universidade Regional de Blume

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         360        319      72  TENET-1, ZA
 36914         220         82       3  KENET-AS, KE
  2561          67          4      32  EUN, EG
  8094          48         48      15  PUKNET, ZA
327687          38         28       3  RENU, UG
327700          33         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/SingAREN/data-ASnet-AFRINIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         572       2140     454  SINET-AS Research Organization of Infor
  7497         433        182      24  CSTNET-AS-AP Computer Network Informati
  2018         360        319      72  TENET-1, ZA
   680         285       1967     251  DFN Verein zur Foerderung eines Deutsch
 36914         220         82       3  KENET-AS, KE
   668         208        702     176  DNIC-AS-00668, US
   376         204        178     153  RISQ-AS, CA
  5786         200         16       1  UPRENET, PR
   786         187       1775     184  JANET Jisc Services Limited, GB
  1237         187         74     135  KREONET-AS-KR KISTI, KR

Complete listing at https://bgp.nsrc.org/REN/SingAREN/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         360          288  TENET-1, ZA
 36914         220          217  KENET-AS, KE
  5786         200          199  UPRENET, PR
 58647         175          173  KAGAWAU-AS Kagawa University, JP
  8895         138          134  ISU Internet Services Unit ISU, SA
 18558         134          130  NETBLK-RCOEK, US
  1916         158          114  Rede Nacional de Ensino e Pesquisa, BR
 55824         116          105  NKN-CORE-NW NKN Core Network, IN
  2920         108          101  LACOE, US

Complete listing at https://bgp.nsrc.org/REN/SingAREN/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/SingAREN/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/SingAREN/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:     23855  SINGAREN-GIX-AS-AP Singapore Advanced Re

Complete listing at https://bgp.nsrc.org/REN/SingAREN/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       /10:2       /11:1       /12:10      
/13:18      /14:34      /15:122     /16:2013    /17:399     /18:441     
/19:564     /20:875     /21:882     /22:1417    /23:1567    /24:10148   
/25:0       /26:1       /27:1       /28:7       /29:0       /30:0       
/31:0       /32:0       

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

   ASN  No of nets  Total ann.  Description
 36914         207         220  KENET-AS, KE
  8895         133         138  ISU Internet Services Unit ISU, SA
 23024          53         114  OCDE, US
 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
 18632          29          55  VOLCANO-VISION, US
 27609          29          45  USC-UNIVERSITY-HOSPITAL, US
 40326          29          33  ECKERD-COLLEGE, US

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

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

   1:3         5:15        6:4         8:2        12:1        14:86     
  18:46       23:10       24:3        31:7        35:4        37:6      
  38:9        40:1        41:121      42:10       44:5        45:40     
  46:5        47:1        49:10       50:4        52:1        59:20     
  60:4        61:3        62:6        63:38       64:57       65:5      
  66:50       67:44       68:8        69:19       70:2        71:1      
  72:9        74:18       76:34       77:7        78:3        79:10     
  80:18       81:28       82:7        83:6        84:8        85:43     
  86:4        87:1        88:1        89:10       91:44       92:1      
  93:10       94:4        95:4        96:5        97:1        98:2      
 101:6       102:13      103:315     104:75      107:17      108:8      
 109:10      110:4       111:17      114:23      116:6       117:61     
 118:32      119:24      121:27      122:8       123:8       124:39     
 125:4       128:86      129:38      130:92      131:65      132:58     
 133:145     134:99      136:200     137:75      138:10      139:5      
 140:51      141:1       142:41      143:31      144:23      145:2      
 146:128     147:59      148:192     149:12      150:130     151:6      
 152:73      153:13      154:28      155:51      156:66      157:28     
 158:44      159:116     160:26      161:22      162:21      163:62     
 164:16      165:57      166:1       167:16      168:115     169:10     
 170:67      172:2       173:7       175:31      176:8       177:11     
 179:10      180:21      181:1       182:4       184:6       185:39     
 186:3       187:19      188:13      189:5       190:34      191:36     
 192:1359    193:311     194:144     195:86      196:155     197:128    
 198:497     199:284     200:237     201:38      202:636     203:430    
 204:337     205:169     206:198     207:177     208:72      209:124    
 210:185     211:13      212:150     213:5       214:8       216:85     
 217:11      218:22      219:6       220:16      222:5       223:3      


End of report


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