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

REN Routing Table Report cscora at frr.nsrc.org
Mon Aug 22 20:00:42 UTC 2022


IPv4 R&E Routing Table Report   20:00 GMT Mon 22 Aug, 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:                               18518
    Prefixes after maximum aggregation (per Origin AS):           10663
    Deaggregation factor:                                          1.74
    Unique aggregates announced (without unneeded subnets):       11832
    Number of IPv4 prefixes with a valid ROA:                      4170
    Number of IPv4 prefixes with an invalid ROA:                     42
    Number of IPv4 prefixes with no ROA:                          14306
Total ASes present in the Internet Routing Table:                  2776
    Prefixes per ASN:                                              6.67
Origin-only ASes present in the Internet Routing Table:            2391
Origin ASes announcing only one prefix:                            1095
Transit ASes present in the Internet Routing Table:                 385
Transit-only ASes present in the Internet Routing Table:             63
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.8
    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:                      40025
Number of 32-bit ASNs visible in the Routing Table:                 624
Prefixes from 32-bit ASNs in the Routing Table:                    1750
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:                    205499904
    Equivalent to 12 /8s, 63 /16s and 174 /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:        2065

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

Prefixes being announced by APNIC Region ASes:                     4586
    Total APNIC prefixes after maximum aggregation:                2295
    APNIC Deaggregation factor:                                    2.00
Prefixes being announced from the APNIC address blocks:            4587
    Unique aggregates announced from the APNIC address blocks:     2598
APNIC Region origin ASes present in the Internet Routing Table:     573
    APNIC Prefixes per ASN:                                        8.01
APNIC Region origin ASes announcing only one prefix:                254
APNIC Region transit ASes present in the Internet Routing Table:     66
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:    214
Number of APNIC addresses announced to Internet:               46027008
    Equivalent to 2 /8s, 190 /16s and 81 /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:                      8019
    Total ARIN prefixes after maximum aggregation:                 4706
    ARIN Deaggregation factor:                                     1.70
Prefixes being announced from the ARIN address blocks:             8033
    Unique aggregates announced from the ARIN address blocks:      5273
ARIN Region origin ASes present in the Internet Routing Table:     1248
    ARIN Prefixes per ASN:                                         6.44
ARIN Region origin ASes announcing only one prefix:                 452
ARIN Region transit ASes present in the Internet Routing Table:     164
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:     183
Number of ARIN addresses announced to Internet:                94641664
    Equivalent to 5 /8s, 164 /16s and 30 /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:                      3538
    Total RIPE prefixes after maximum aggregation:                 2867
    RIPE Deaggregation factor:                                     1.23
Prefixes being announced from the RIPE address blocks:             3527
    Unique aggregates announced from the RIPE address blocks:      2865
RIPE Region origin ASes present in the Internet Routing Table:      681
    RIPE Prefixes per ASN:                                         5.18
RIPE Region origin ASes announcing only one prefix:                 307
RIPE Region transit ASes present in the Internet Routing Table:     101
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:     137
Number of RIPE addresses announced to Internet:                57984512
    Equivalent to 3 /8s, 116 /16s and 198 /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:                    1422
    Total LACNIC prefixes after maximum aggregation:                574
    LACNIC Deaggregation factor:                                   2.48
Prefixes being announced from the LACNIC address blocks:           1422
    Unique aggregates announced from the LACNIC address blocks:     788
LACNIC Region origin ASes present in the Internet Routing Table:    158
    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:    24
Average LACNIC Region AS path length visible:                       6.0
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    65
Number of LACNIC addresses announced to Internet:               4217344
    Equivalent to 0 /8s, 64 /16s and 90 /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:                    947
    Total AfriNIC prefixes after maximum aggregation:               215
    AfriNIC Deaggregation factor:                                  4.40
Prefixes being announced from the AfriNIC address blocks:           947
    Unique aggregates announced from the AfriNIC address blocks:    306
AfriNIC Region origin ASes present in the Internet Routing Table:    48
    AfriNIC Prefixes per ASN:                                     19.73
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:                      4.4
    Max AfriNIC Region AS path length visible:                       13
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   25
Number of AfriNIC addresses announced to Internet:              2628864
    Equivalent to 0 /8s, 40 /16s and 29 /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         434        182      24  CSTNET-AS-AP Computer Network Informati
  1237         185         74     134  KREONET-AS-KR KISTI, KR
 58647         175         18       2  KAGAWAU-AS Kagawa University, JP
  7575         174        329     120  AARNET-AS-AP Australian Academic and Re
  4538         128       4192      73  ERX-CERNET-BKB China Education and Rese
 55824         115         18      11  NKN-CORE-NW NKN Core Network, IN
  4621          76         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         219        703     181  DNIC-AS-00668, US
  5786         200         16       1  UPRENET, PR
   376         197        178     147  RISQ-AS, CA
  2152         154        507      91  CSUNET-NW, US
 18558         136         18       4  NETBLK-RCOEK, US
 23024         114          7      17  OCDE, US
  2920         108         34       7  LACOE, US
 32531          90          6      60  FORDHAM-UNIVERSITY, US
 21976          85         51      18  NJEDGE-NET, US
  1736          80         16       1  MU-AS, 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         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/SingAREN/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/SingAREN/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         233         82       3  KENET-AS, KE
  2561          67          4      32  EUN, EG
  8094          47         48      18  PUKNET, ZA
327687          38         28       3  RENU, UG
327700          34         16       1  MoRENet, MZ
  6879          24          2       9  ENSTINET-, EG
 37182          19          1      13  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         566       2156     455  SINET-AS Research Organization of Infor
  7497         434        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
 36914         233         82       3  KENET-AS, KE
   668         219        703     181  DNIC-AS-00668, US
  5786         200         16       1  UPRENET, PR
   376         197        178     147  RISQ-AS, CA
   786         186       1775     183  JANET Jisc Services Limited, GB
  1237         185         74     134  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         434          410  CSTNET-AS-AP Computer Network Information Cente
  2018         376          303  TENET-1, ZA
 36914         233          230  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         136          132  NETBLK-RCOEK, US
  1916         158          115  Rede Nacional de Ensino e Pesquisa, BR
 55824         115          104  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     /16:2012    /17:399     /18:443     
/19:575     /20:881     /21:890     /22:1417    /23:1561    /24:10148   
/25:0       /26:0       /27:1       /28:3       /29:0       /30:0       
/31:0       /32:0       

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

   ASN  No of nets  Total ann.  Description
 36914         220         233  KENET-AS, KE
  8895         133         138  ISU Internet Services Unit ISU, SA
 23024          53         114  OCDE, US
 18632          34          63  VOLCANO-VISION, US
 32440          32          47  LONI, US
 46115          32          35  LUTHER, US
 25977          31          45  HCCS, US
 28614          31          37  Fundacao Universidade Regional de Blumenau, BR
200521          31          52  SEAP-AGE, ES
263282          30          37  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN

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     
  18:43       23:9        24:3        31:7        35:4        38:9      
  40:1        41:131      42:10       44:5        45:37       46:5      
  47:1        49:10       50:4        52:1        58:1        59:20     
  60:4        61:3        62:10       63:38       64:56       65:5      
  66:35       67:45       68:8        69:19       70:2        71:1      
  72:7        74:50       76:37       77:7        78:3        79:10     
  80:18       81:27       82:7        83:6        84:8        85:43     
  86:6        87:1        88:1        89:10       91:47       92:1      
  93:4        94:4        95:4        96:5        97:1        98:2      
 101:6       102:13      103:285     104:75      107:16      108:8      
 109:11      110:4       111:16      114:23      116:6       117:61     
 118:32      119:24      121:27      122:8       123:8       124:39     
 125:4       128:86      129:38      130:90      131:76      132:59     
 133:145     134:100     136:200     137:74      138:12      139:5      
 140:57      141:1       142:39      143:31      144:23      145:2      
 146:129     147:58      148:192     149:12      150:130     151:6      
 152:73      153:13      154:28      155:51      156:66      157:23     
 158:41      159:115     160:26      161:21      162:25      163:75     
 164:10      165:57      166:1       167:16      168:120     169:10     
 170:66      172:2       173:7       175:30      176:8       177:11     
 179:10      180:18      181:1       182:4       184:5       185:46     
 186:3       187:19      188:13      189:3       190:34      191:35     
 192:1364    193:309     194:144     195:92      196:161     197:137    
 198:501     199:282     200:220     201:38      202:635     203:429    
 204:350     205:126     206:195     207:173     208:72      209:123    
 210:183     211:13      212:173     213:5       214:8       216:86     
 217:11      218:22      219:6       220:17      222:5       223:4      


End of report


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