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

REN Routing Table Report cscora at bgp.nsrc.org
Sat Aug 24 20:00:38 UTC 2024


IPv4 R&E Routing Table Report   20:00 GMT Sat 24 Aug, 2024

  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:                               19397
    Prefixes after maximum aggregation (per Origin AS):           10724
    Deaggregation factor:                                          1.81
    Unique aggregates announced (without unneeded subnets):       11794
    Number of IPv4 prefixes with a valid ROA:                      6219
    Number of IPv4 prefixes with an invalid ROA:                      3
    Number of IPv4 prefixes with no ROA:                          13175
Total ASes present in the Internet Routing Table:                  2819
    Prefixes per ASN:                                              6.88
Origin-only ASes present in the Internet Routing Table:            2429
Origin ASes announcing only one prefix:                            1082
Transit ASes present in the Internet Routing Table:                 390
Transit-only ASes present in the Internet Routing Table:             81
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      18
    Max AS path prepend of ASN (395156)                              12
Prefixes from unregistered ASNs in the Routing Table:                 1
    Number of instances of unregistered ASNs:                         1
Number of 32-bit ASNs allocated by the RIRs:                      45237
Number of 32-bit ASNs visible in the Routing Table:                 677
Prefixes from 32-bit ASNs in the Routing Table:                    1905
Number of bogon 32-bit ASNs visible in the Routing Table:             0
Special use prefixes present in the Routing Table:                    0
Prefixes being announced from unallocated address space:              7
Number of addresses announced to Internet:                    202617600
    Equivalent to 12 /8s, 19 /16s and 179 /24s
    Percentage of available address space announced:                5.5
    Percentage of allocated address space announced:                5.5
    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:        2298

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

Prefixes being announced by APNIC Region ASes:                     4720
    Total APNIC prefixes after maximum aggregation:                2332
    APNIC Deaggregation factor:                                    2.02
Prefixes being announced from the APNIC address blocks:            4715
    Unique aggregates announced from the APNIC address blocks:     2669
APNIC Region origin ASes present in the Internet Routing Table:     586
    APNIC Prefixes per ASN:                                        8.05
APNIC Region origin ASes announcing only one prefix:                248
APNIC Region transit ASes present in the Internet Routing Table:     62
Average APNIC Region AS path length visible:                        3.5
    Max APNIC Region AS path length visible:                         11
Number of APNIC region 32-bit ASNs visible in the Routing Table:    229
Number of APNIC addresses announced to Internet:               45692672
    Equivalent to 2 /8s, 185 /16s and 55 /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, 131072-153913
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:                      8610
    Total ARIN prefixes after maximum aggregation:                 4856
    ARIN Deaggregation factor:                                     1.77
Prefixes being announced from the ARIN address blocks:             8622
    Unique aggregates announced from the ARIN address blocks:      5315
ARIN Region origin ASes present in the Internet Routing Table:     1287
    ARIN Prefixes per ASN:                                         6.70
ARIN Region origin ASes announcing only one prefix:                 459
ARIN Region transit ASes present in the Internet Routing Table:     161
Average ARIN Region AS path length visible:                         5.3
    Max ARIN Region AS path length visible:                          17
Number of ARIN region 32-bit ASNs visible in the Routing Table:     211
Number of ARIN addresses announced to Internet:                90561280
    Equivalent to 5 /8s, 101 /16s and 219 /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, 393216-402332
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:                      3535
    Total RIPE prefixes after maximum aggregation:                 2831
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3523
    Unique aggregates announced from the RIPE address blocks:      2876
RIPE Region origin ASes present in the Internet Routing Table:      665
    RIPE Prefixes per ASN:                                         5.30
RIPE Region origin ASes announcing only one prefix:                 296
RIPE Region transit ASes present in the Internet Routing Table:     106
Average RIPE Region AS path length visible:                         3.7
    Max RIPE Region AS path length visible:                          13
Number of RIPE region 32-bit ASNs visible in the Routing Table:     154
Number of RIPE addresses announced to Internet:                59606784
    Equivalent to 3 /8s, 141 /16s and 135 /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
                       196608-216475
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:                    1387
    Total LACNIC prefixes after maximum aggregation:                547
    LACNIC Deaggregation factor:                                   2.54
Prefixes being announced from the LACNIC address blocks:           1387
    Unique aggregates announced from the LACNIC address blocks:     729
LACNIC Region origin ASes present in the Internet Routing Table:    165
    LACNIC Prefixes per ASN:                                       8.41
LACNIC Region origin ASes announcing only one prefix:                62
LACNIC Region transit ASes present in the Internet Routing Table:    26
Average LACNIC Region AS path length visible:                       6.2
    Max LACNIC Region AS path length visible:                        15
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    70
Number of LACNIC addresses announced to Internet:               4270592
    Equivalent to 0 /8s, 65 /16s and 42 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-274844 + 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:                   1144
    Total AfriNIC prefixes after maximum aggregation:               157
    AfriNIC Deaggregation factor:                                  7.29
Prefixes being announced from the AfriNIC address blocks:          1143
    Unique aggregates announced from the AfriNIC address blocks:    199
AfriNIC Region origin ASes present in the Internet Routing Table:    34
    AfriNIC Prefixes per ASN:                                     33.62
AfriNIC Region origin ASes announcing only one prefix:               17
AfriNIC Region transit ASes present in the Internet Routing Table:    8
Average AfriNIC Region AS path length visible:                      4.1
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   13
Number of AfriNIC addresses announced to Internet:              2475264
    Equivalent to 0 /8s, 37 /16s and 197 /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         585       2153     463  SINET-AS Research Organization of Informa
  7497         447        180      24  CSTNET-AS-AP Computer Network Information
  1237         190         74     145  KREONET-AS-KR KISTI, KR
 58647         180         18       2  KAGAWAU-AS Kagawa University, JP
  7575         172        329     115  AARNET-AS-AP Australian Academic and Rese
 55824         132         18      19  NKN-CORE-NW NKN Core Network, IN
  4538         129       4192      72  ERX-CERNET-BKB China Education and Resear
  4762          75          4       1  MAHIDOL-BORDER-AS Mahidol University, Tha
  4621          69         37      10  UNINET-AS-AP UNINET-, TH
 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
  2152         504        507      99  CENIC-2152, US
  2920         229         44      49  LACOE, US
   668         205        648     174  DNIC-AS-00668, US
   376         199        162     149  RISQ-AS, CA
  5786         198         16       1  UPRENET, PR
 18558         141         18       5  NETBLK-RCOEK, US
    81         133        517      33  NCREN, US
 23024          96          7      21  OCDE, US
 21976          87         50      17  NJEDGE-NET, US
   237          85        541      50  MERIT-AS-14, 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         283       1899     250  DFN Verein zur Foerderung eines Deutschen
   786         184       1767     181  JANET Jisc Services Limited, GB
  8895         136         24       5  ISU Internet Services Unit ISU, SA
   559         113        533     103  SWITCH Peering requests: peering at switch.c
  1103          97       2015      84  SURFNET-NL SURFnet, The Netherlands, NL
  2614          90         26      70  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
  1930          79         88      74  RCCN Fundacao para a Ciencia e a Tecnolog
   553          78        462      78  BELWUE BelWue-Koordination, DE
  3267          76         26      66  NIKS, RU

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         160        176      42  Rede Nacional de Ensino e Pesquisa, BR
 28391         153         10      67  Universidad Juarez Autonoma de Tabasco, M
 11340         109         25      52  Red Universitaria Nacional, CL
271640          67          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
 61468          49          5      17  CEDIA, EC
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, BR
  4270          46         16       1  Red de Interconexion Universitaria, AR
  2715          45         99      34  Fundacao Carlos Chagas Filho de Amparo a 
 28614          38          2       2  Fundacao Universidade Regional de Blumena
  3596          37          8       4  Universidad Autonoma Metropolitana, MX

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
 36914         523         82       3  KENET-AS, KE
  2018         381        319      71  TENET-1, ZA
327700          49         16       1  MoRENet, MZ
  8094          47         48      18  PUKNET, ZA
 37182          38          8       1  TERNET, TZ
  6879          24          2       9  ENSTINET-, EG
 37661          13          8       5  NRaE1-AS, NG
 37501          11         49       6  UOFS, ZA
 37215          10          8       1  MAREN, MW
 36982           8         33       8  UCT, 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         585       2153     463  SINET-AS Research Organization of Informa
 36914         523         82       3  KENET-AS, KE
  2152         504        507      99  CENIC-2152, US
  7497         447        180      24  CSTNET-AS-AP Computer Network Information
  2018         381        319      71  TENET-1, ZA
   680         283       1899     250  DFN Verein zur Foerderung eines Deutschen
  2920         229         44      49  LACOE, US
   668         205        648     174  DNIC-AS-00668, US
   376         199        162     149  RISQ-AS, CA
  5786         198         16       1  UPRENET, PR

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

Global Per AS Maximum Aggregation summary
-----------------------------------------

   ASN  No of nets  Net Savings  Description
 36914         523          520  KENET-AS, KE
  7497         447          423  CSTNET-AS-AP Computer Network Information Cente
  2152         504          405  CENIC-2152, US
  2018         381          310  TENET-1, ZA
  5786         198          197  UPRENET, PR
  2920         229          180  LACOE, US
 58647         180          178  KAGAWAU-AS Kagawa University, JP
 18558         141          136  NETBLK-RCOEK, US
  8895         136          131  ISU Internet Services Unit ISU, SA
  1916         160          118  Rede Nacional de Ensino e Pesquisa, BR

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
     26971  UNALLOCATED  129.111.0.0/16             276  OTS-AS-276, US

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

Advertised Unallocated Addresses
--------------------------------

Unassigned Network     ASN Information  AS Name
164.160.192.0/21     Origin:     37661  NRaE1-AS, NG
164.160.192.0/21    Transit:     37288  WACREN, SN
192.31.196.0/24      Origin:       112  RESERVED, ZZ
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL
202.14.117.0/24      Origin:     17827  STOU-AS-TH Sukhothai Thammathirat Open U
202.14.117.0/24     Transit:      4621  UNINET-AS-AP UNINET-, TH
202.46.0.0/20        Origin:    147171  IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.0.0/20       Transit:     64302  IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
202.46.240.0/20      Origin:    147171  IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.240.0/20     Transit:     64302  IDNIC-IDREN-AS-ID IDREN - Indonesia Rese

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       /10:1       /11:2       /12:10      
/13:18      /14:33      /15:118     /16:1994    /17:422     /18:451     
/19:589     /20:879     /21:885     /22:1467    /23:1604    /24:10923   
/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         500         523  KENET-AS, KE
  8895         131         136  ISU Internet Services Unit ISU, SA
  2152          61         504  CENIC-2152, US
327700          43          49  MoRENet, MZ
 23024          38          96  OCDE, US
 37182          37          38  TERNET, TZ
 32440          36          63  LONI, US
  3267          35          76  NIKS, RU
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US

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

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

   1:2         5:15        6:4         8:2        12:1        14:92     
  23:7        24:3        31:1        35:3        37:8        38:10     
  40:1        41:264      42:10       44:6        45:52       46:5      
  47:1        49:10       50:5        52:1        58:1        59:19     
  60:6        61:3        62:7        63:35       64:45       65:1      
  66:51       67:43       68:10       69:18       70:2        71:1      
  72:7        74:54       76:42       77:10       78:3        79:10     
  80:13       81:24       82:6        83:7        84:8        85:33     
  86:5        87:1        89:11       91:44       92:2        93:13     
  94:2        95:2        96:5        97:2        98:2       101:1      
 102:6       103:323     104:78      107:2       108:8       109:4      
 111:15      113:2       114:24      116:9       117:61      118:34     
 119:23      121:27      122:8       123:8       124:42      125:5      
 128:84      129:34      130:95      131:62      132:67      133:154    
 134:109     136:198     137:89      138:57      139:6       140:36     
 141:3       142:25      143:24      144:26      145:2       146:135    
 147:63      148:194     149:13      150:40      151:9       152:135    
 153:15      154:37      155:63      156:133     157:14      158:35     
 159:121     160:30      161:17      162:24      163:61      164:14     
 165:47      166:1       167:30      168:119     169:6       170:93     
 171:1       172:2       173:6       175:17      177:5       179:14     
 180:16      181:1       182:9       184:3       185:51      186:3      
 187:20      188:13      189:3       190:18      191:13      192:1393   
 193:268     194:138     195:74      196:149     197:313     198:556    
 199:279     200:292     201:39      202:647     203:438     204:407    
 205:171     206:213     207:310     208:67      209:152     210:221    
 211:14      212:162     213:6       214:8       216:90      217:9      
 218:22      219:5       220:17      222:2       223:15     

End of report


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