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

REN Routing Table Report cscora at bgp.nsrc.org
Fri Nov 15 22:05:48 UTC 2024


IPv4 R&E Routing Table Report   22:05 GMT Fri 15 Nov, 2024

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

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

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

BGP routing table entries examined:                               19951
    Prefixes after maximum aggregation (per Origin AS):           11398
    Deaggregation factor:                                          1.75
    Unique aggregates announced (without unneeded subnets):       12682
    Number of IPv4 prefixes with a valid ROA:                      8217
    Number of IPv4 prefixes with an invalid ROA:                     10
    Number of IPv4 prefixes with no ROA:                          11724
Total ASes present in the Internet Routing Table:                  2794
    Prefixes per ASN:                                              7.14
Origin-only ASes present in the Internet Routing Table:            2413
Origin ASes announcing only one prefix:                            1072
Transit ASes present in the Internet Routing Table:                 381
Transit-only ASes present in the Internet Routing Table:             67
Paths with bogon ASNs present in the IPv4 Routing Table:              5
Average AS path length visible in the Internet Routing Table:       4.2
    Max AS path length visible:                                      20
    Max AS path prepend of ASN (395156)                              12
Prefixes from unregistered ASNs in the Routing Table:                 4
    Number of instances of unregistered ASNs:                         4
Number of 32-bit ASNs allocated by the RIRs:                      45849
Number of 32-bit ASNs visible in the Routing Table:                 669
Prefixes from 32-bit ASNs in the Routing Table:                    1830
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:              4
Number of addresses announced to Internet:                    271328512
    Equivalent to 16 /8s, 44 /16s and 37 /24s
    Percentage of available address space announced:                7.3
    Percentage of allocated address space announced:                7.3
    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:        2406

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

Prefixes being announced by APNIC Region ASes:                     4645
    Total APNIC prefixes after maximum aggregation:                2265
    APNIC Deaggregation factor:                                    2.05
Prefixes being announced from the APNIC address blocks:            4701
    Unique aggregates announced from the APNIC address blocks:     2679
APNIC Region origin ASes present in the Internet Routing Table:     557
    APNIC Prefixes per ASN:                                        8.44
APNIC Region origin ASes announcing only one prefix:                237
APNIC Region transit ASes present in the Internet Routing Table:     60
Average APNIC Region AS path length visible:                        4.5
    Max APNIC Region AS path length visible:                         14
Number of APNIC region 32-bit ASNs visible in the Routing Table:    207
Number of APNIC addresses announced to Internet:               47266560
    Equivalent to 2 /8s, 209 /16s and 59 /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:                      9189
    Total ARIN prefixes after maximum aggregation:                 5583
    ARIN Deaggregation factor:                                     1.65
Prefixes being announced from the ARIN address blocks:             8835
    Unique aggregates announced from the ARIN address blocks:      5862
ARIN Region origin ASes present in the Internet Routing Table:     1292
    ARIN Prefixes per ASN:                                         6.84
ARIN Region origin ASes announcing only one prefix:                 449
ARIN Region transit ASes present in the Internet Routing Table:     157
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          15
Number of ARIN region 32-bit ASNs visible in the Routing Table:     212
Number of ARIN addresses announced to Internet:               135847936
    Equivalent to 8 /8s, 24 /16s and 224 /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,  45/8,  47/8,  48/8,  50/8,  52/8,
                        54/8,  55/8,  56/8,  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:                 2839
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3829
    Unique aggregates announced from the RIPE address blocks:      3212
RIPE Region origin ASes present in the Internet Routing Table:      670
    RIPE Prefixes per ASN:                                         5.71
RIPE Region origin ASes announcing only one prefix:                 301
RIPE Region transit ASes present in the Internet Routing Table:     108
Average RIPE Region AS path length visible:                         4.7
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     158
Number of RIPE addresses announced to Internet:                80818688
    Equivalent to 4 /8s, 209 /16s and 50 /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,
                        53/8,  57/8,  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:                    1450
    Total LACNIC prefixes after maximum aggregation:                543
    LACNIC Deaggregation factor:                                   2.67
Prefixes being announced from the LACNIC address blocks:           1451
    Unique aggregates announced from the LACNIC address blocks:     727
LACNIC Region origin ASes present in the Internet Routing Table:    155
    LACNIC Prefixes per ASN:                                       9.36
LACNIC Region origin ASes announcing only one prefix:                53
LACNIC Region transit ASes present in the Internet Routing Table:    23
Average LACNIC Region AS path length visible:                       5.2
    Max LACNIC Region AS path length visible:                        14
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    63
Number of LACNIC addresses announced to Internet:               4723456
    Equivalent to 0 /8s, 72 /16s and 19 /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:                   1128
    Total AfriNIC prefixes after maximum aggregation:               164
    AfriNIC Deaggregation factor:                                  6.88
Prefixes being announced from the AfriNIC address blocks:          1131
    Unique aggregates announced from the AfriNIC address blocks:    198
AfriNIC Region origin ASes present in the Internet Routing Table:    51
    AfriNIC Prefixes per ASN:                                     22.18
AfriNIC Region origin ASes announcing only one prefix:               32
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      4.0
    Max AfriNIC Region AS path length visible:                       20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   29
Number of AfriNIC addresses announced to Internet:              2669056
    Equivalent to 0 /8s, 40 /16s and 186 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks  41/8, 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         590       2170     464  SINET-AS Research Organization of Informa
  7497         447        180      24  CSTNET-AS-AP Computer Network Information
  1237         191         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
  4538         138       4192      72  ERX-CERNET-BKB China Education and Resear
 55824         131         18      18  NKN-CORE-NW NKN Core Network, IN
  4762          75          4       1  MAHIDOL-BORDER-AS Mahidol University, Tha
  4621          69         37      10  UNINET-AS-AP UNINET-, TH
  2697          59          4      34  ERX-ERNET-AS Education and Research Netwo

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8075         681      16014     572  MICROSOFT-CORP-MSN-AS-BLOCK, US
   376         201        162     150  RISQ-AS, CA
   668         201        647     170  DNIC-AS-00668, US
  5786         198         16       1  UPRENET, PR
  2920         175         34       7  LACOE, US
  2152         153        507      97  CENIC-2152, US
 18558         140         18       4  NETBLK-RCOEK, US
    81         134        517      33  NCREN, US
   270         117        328      81  AS270, US
 23024          95          7      21  OCDE, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         281       1899     248  DFN Verein zur Foerderung eines Deutschen
   786         186       1767     183  JANET Jisc Services Limited, GB
  8895         132         24       5  ISU Internet Services Unit ISU, SA
   559         114        533     104  SWITCH Peering requests: peering at switch.c
  1103          97       1759      84  SURFNET-NL SURFnet, The Netherlands, NL
  2614          93         26      73  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/CENIC/data-ASnet-RIPE

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         217        178      42  Rede Nacional de Ensino e Pesquisa, BR
 28391         154         10      68  Universidad Juarez Autonoma de Tabasco, M
 11340         110         25      53  Red Universitaria Nacional, CL
271640          66          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
 61468          53          5      19  CEDIA, EC
  2715          49         99      35  Fundacao Carlos Chagas Filho de Amparo a 
  4270          48         16       2  Red de Interconexion Universitaria, AR
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, BR
 28614          38          2       2  Fundacao Universidade Regional de Blumena
  1251          37         31      26  FUNDACAO DE AMPARO A PESQUISA DO ESTADO S

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 36914         544         82       3  KENET-AS, KE
  2018         380        319      71  TENET-1, ZA
  8094          47         48      18  PUKNET, ZA
 37215          33          8       1  MAREN, MW
 37074          15          8       2  UG-AS, GH
327700          15         16       1  MoRENet, MZ
 37661          12          8       4  NRaE1-AS, NG
 37501          11         49       6  UOFS, ZA
 36982           8         33       8  UCT, ZA
 37654           6          0       5  RwEdNet-AS, RW

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8075         681      16014     572  MICROSOFT-CORP-MSN-AS-BLOCK, US
  2907         590       2170     464  SINET-AS Research Organization of Informa
 36914         544         82       3  KENET-AS, KE
  7497         447        180      24  CSTNET-AS-AP Computer Network Information
  2018         380        319      71  TENET-1, ZA
   680         281       1899     248  DFN Verein zur Foerderung eines Deutschen
  1916         217        178      42  Rede Nacional de Ensino e Pesquisa, BR
   376         201        162     150  RISQ-AS, CA
   668         201        647     170  DNIC-AS-00668, US
  5786         198         16       1  UPRENET, PR

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

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

   ASN  No of nets  Net Savings  Description
 36914         544          541  KENET-AS, KE
  7497         447          423  CSTNET-AS-AP Computer Network Information Cente
  2018         380          309  TENET-1, ZA
  5786         198          197  UPRENET, PR
 58647         180          178  KAGAWAU-AS Kagawa University, JP
  1916         217          175  Rede Nacional de Ensino e Pesquisa, BR
  2920         175          168  LACOE, US
 18558         140          136  NETBLK-RCOEK, US
  8895         132          127  ISU Internet Services Unit ISU, SA
  2907         590          126  SINET-AS Research Organization of Information a

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     65208  PRIVATE      63.225.1.0/24            11570  AS11570, US
     26971  UNALLOCATED  129.111.0.0/16             276  OTS-AS-276, US
     65208  PRIVATE      206.206.156.0/22         11570  AS11570, US
     65208  PRIVATE      216.161.32.0/23          11570  AS11570, US

Complete listing at https://bgp.nsrc.org/REN/CENIC/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
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
202.46.245.0/24      Origin:    147171  IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.245.0/24     Transit:     64302  IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
203.9.156.0/24       Origin:      1851  ADELAIDE-UNIVERSITY-AS-AP The University
203.9.156.0/24      Transit:      7575  AARNET-AS-AP Australian Academic and Res

Complete listing at https://bgp.nsrc.org/REN/CENIC/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       /10:3       /11:7       /12:25      
/13:31      /14:61      /15:157     /16:2210    /17:450     /18:478     
/19:600     /20:880     /21:901     /22:1488    /23:1576    /24:11083   
/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         520         544  KENET-AS, KE
  8895         127         132  ISU Internet Services Unit ISU, SA
  8075         120         681  MICROSOFT-CORP-MSN-AS-BLOCK, US
 23024          37          95  OCDE, US
 32440          37          63  LONI, US
  3267          34          76  NIKS, RU
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US
 25977          30          44  HCCS, US
200521          30          53  SEAP-AGE, ES

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

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

   1:2         2:1         4:2         5:16        6:4         8:2      
  12:2        13:30       14:92       23:10       24:3        31:1      
  35:8        37:8        38:10       40:1        41:222      42:11     
  44:5        45:57       46:5        47:1        49:10       50:6      
  52:6        59:19       60:6        61:3        62:14       63:38     
  64:51       65:5        66:59       67:46       68:19       69:28     
  70:2        71:1        72:8        74:59       76:42       77:10     
  78:3        79:10       80:12       81:26       82:7        83:7      
  84:5        85:45       86:5        87:1        89:11       91:48     
  92:4        93:13       94:6        95:3        96:5        97:1      
  98:2       101:1       102:13      103:292     104:79      107:2      
 108:11      109:3       111:21      113:6       114:24      116:9      
 117:61      118:33      119:23      121:27      122:8       123:8      
 124:42      125:5       128:58      129:37      130:96      131:69     
 132:65      133:154     134:109     135:4       136:198     137:55     
 138:65      139:6       140:36      141:4       142:57      143:27     
 144:29      145:6       146:137     147:65      148:196     149:13     
 150:46      151:11      152:140     153:14      154:39      155:69     
 156:133     157:29      158:32      159:119     160:31      161:25     
 162:34      163:66      164:17      165:49      166:3       167:29     
 168:120     169:7       170:109     171:1       172:2       173:8      
 175:16      176:1       177:6       178:2       179:13      180:16     
 181:1       182:11      184:6       185:81      186:3       187:21     
 188:14      189:2       190:18      191:13      192:1515    193:269    
 194:129     195:47      196:144     197:335     198:490     199:300    
 200:334     201:37      202:638     203:452     204:392     205:139    
 206:216     207:227     208:75      209:118     210:218     211:3      
 212:169     213:10      214:8       216:97      217:11      218:21     
 219:5       220:17      222:2       223:15     

End of report


More information about the ren-bgp-stats-all mailing list