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

REN Routing Table Report cscora at bgp.nsrc.org
Sun Aug 27 22:10:43 UTC 2023


IPv4 R&E Routing Table Report   22:10 GMT Sun 27 Aug, 2023

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

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

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

BGP routing table entries examined:                               25320
    Prefixes after maximum aggregation (per Origin AS):           12451
    Deaggregation factor:                                          2.03
    Unique aggregates announced (without unneeded subnets):       14064
    Number of IPv4 prefixes with a valid ROA:                     11658
    Number of IPv4 prefixes with an invalid ROA:                    193
    Number of IPv4 prefixes with no ROA:                          13469
Total ASes present in the Internet Routing Table:                  2744
    Prefixes per ASN:                                              9.23
Origin-only ASes present in the Internet Routing Table:            2355
Origin ASes announcing only one prefix:                            1038
Transit ASes present in the Internet Routing Table:                 389
Transit-only ASes present in the Internet Routing Table:             72
Paths with bogon ASNs present in the IPv4 Routing Table:              1
Average AS path length visible in the Internet Routing Table:       4.7
    Max AS path length visible:                                      16
    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:                      42515
Number of 32-bit ASNs visible in the Routing Table:                 633
Prefixes from 32-bit ASNs in the Routing Table:                    4680
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:                    242327272
    Equivalent to 14 /8s, 113 /16s and 158 /24s
    Percentage of available address space announced:                6.5
    Percentage of allocated address space announced:                6.5
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               99.5
Total number of prefixes smaller than registry allocations:        3356

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

Prefixes being announced by APNIC Region ASes:                     4665
    Total APNIC prefixes after maximum aggregation:                2284
    APNIC Deaggregation factor:                                    2.04
Prefixes being announced from the APNIC address blocks:            4707
    Unique aggregates announced from the APNIC address blocks:     2647
APNIC Region origin ASes present in the Internet Routing Table:     546
    APNIC Prefixes per ASN:                                        8.62
APNIC Region origin ASes announcing only one prefix:                231
APNIC Region transit ASes present in the Internet Routing Table:     61
Average APNIC Region AS path length visible:                        5.8
    Max APNIC Region AS path length visible:                         16
Number of APNIC region 32-bit ASNs visible in the Routing Table:    206
Number of APNIC addresses announced to Internet:               45776448
    Equivalent to 2 /8s, 186 /16s and 126 /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:                     14307
    Total ARIN prefixes after maximum aggregation:                 6412
    ARIN Deaggregation factor:                                     2.23
Prefixes being announced from the ARIN address blocks:            14112
    Unique aggregates announced from the ARIN address blocks:      7180
ARIN Region origin ASes present in the Internet Routing Table:     1222
    ARIN Prefixes per ASN:                                        11.55
ARIN Region origin ASes announcing only one prefix:                 423
ARIN Region transit ASes present in the Internet Routing Table:     166
Average ARIN Region AS path length visible:                         4.4
    Max ARIN Region AS path length visible:                          16
Number of ARIN region 32-bit ASNs visible in the Routing Table:     190
Number of ARIN addresses announced to Internet:               131557665
    Equivalent to 7 /8s, 215 /16s and 105 /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:                      3648
    Total RIPE prefixes after maximum aggregation:                 2884
    RIPE Deaggregation factor:                                     1.26
Prefixes being announced from the RIPE address blocks:             3795
    Unique aggregates announced from the RIPE address blocks:      3113
RIPE Region origin ASes present in the Internet Routing Table:      685
    RIPE Prefixes per ASN:                                         5.54
RIPE Region origin ASes announcing only one prefix:                 301
RIPE Region transit ASes present in the Internet Routing Table:     106
Average RIPE Region AS path length visible:                         4.9
    Max RIPE Region AS path length visible:                          13
Number of RIPE region 32-bit ASNs visible in the Routing Table:     142
Number of RIPE addresses announced to Internet:                58010624
    Equivalent to 3 /8s, 117 /16s and 44 /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:                    1633
    Total LACNIC prefixes after maximum aggregation:                694
    LACNIC Deaggregation factor:                                   2.35
Prefixes being announced from the LACNIC address blocks:           1639
    Unique aggregates announced from the LACNIC address blocks:     894
LACNIC Region origin ASes present in the Internet Routing Table:    164
    LACNIC Prefixes per ASN:                                       9.99
LACNIC Region origin ASes announcing only one prefix:                57
LACNIC Region transit ASes present in the Internet Routing Table:    28
Average LACNIC Region AS path length visible:                       4.5
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    67
Number of LACNIC addresses announced to Internet:               4253319
    Equivalent to 0 /8s, 64 /16s and 230 /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:                   1063
    Total AfriNIC prefixes after maximum aggregation:               173
    AfriNIC Deaggregation factor:                                  6.14
Prefixes being announced from the AfriNIC address blocks:          1063
    Unique aggregates announced from the AfriNIC address blocks:    226
AfriNIC Region origin ASes present in the Internet Routing Table:    52
    AfriNIC Prefixes per ASN:                                     20.44
AfriNIC Region origin ASes announcing only one prefix:               26
AfriNIC Region transit ASes present in the Internet Routing Table:    9
Average AfriNIC Region AS path length visible:                      4.3
    Max AfriNIC Region AS path length visible:                       10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   28
Number of AfriNIC addresses announced to Internet:              2662912
    Equivalent to 0 /8s, 40 /16s and 162 /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         601       2162     465  SINET-AS Research Organization of Infor
  7497         434        180      23  CSTNET-AS-AP Computer Network Informati
  1237         194         74     139  KREONET-AS-KR KISTI, KR
 58647         178         18       2  KAGAWAU-AS Kagawa University, JP
  7575         177        329     120  AARNET-AS-AP Australian Academic and Re
  4538         130       4192      73  ERX-CERNET-BKB China Education and Rese
 55824         124         18      17  NKN-CORE-NW NKN Core Network, IN
  4621          69         37       9  UNINET-AS-AP UNINET-, TH
  9411          66         16       2  NONTRINET-AS-AP Kasetsart University, T
  4762          61          4       1  MAHIDOL-BORDER-AS Mahidol University, T

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
396982        2687       3596     387  GOOGLE-CLOUD-PLATFORM, US
 16509        2131       1636     846  AMAZON-02, US
 15169         826       1997      61  GOOGLE, US
 14618         810       4019     609  AMAZON-AES, US
   376         202        178     150  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR
 36492         157         11      35  GOOGLEWIFI, US
  2152         148        507      92  CSUNET-NW, US
 18558         136         18       4  NETBLK-RCOEK, US
    81         127        521      30  NCREN, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         283       1903     249  DFN Verein zur Foerderung eines Deutsch
   786         185       1767     182  JANET Jisc Services Limited, GB
  8895         163         24       5  ISU Internet Services Unit ISU, SA
   559         113        533     105  SWITCH Peering requests: peering at switch
  1103          94       1502      83  SURFNET-NL SURFnet, The Netherlands, NL
  2614          93         27      73  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
   553          74        465      74  BELWUE BelWue-Koordination, DE
  1930          65         81      60  RCCN Fundacao para a Ciencia e a Tecnol
  2200          64        599      59  FR-RENATER Reseau National de telecommu

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         260        176      43  Rede Nacional de Ensino e Pesquisa, BR
 28391         153         10      67  Universidad Juarez Autonoma de Tabasco,
 27947         125          0      95  Telconet S.A, EC
 11340         115         25      52  Red Universitaria Nacional, CL
271640          73          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
  2715          59        102      39  Fundacao Carlos Chagas Filho de Amparo 
  4270          49         16       1  Red de Interconexion Universitaria, AR
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, B
 28614          38          2       2  Fundacao Universidade Regional de Blume
  3596          35          4       3  Universidad Autonoma Metropolitana, MX

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         370        319      71  TENET-1, ZA
 36914         257         82       3  KENET-AS, KE
327687         166         28       3  RENU, UG
  8094          48         48      15  PUKNET, ZA
327700          42         16       1  MoRENet, MZ
  3208          32          2       1  ARN, DZ
  6879          24          2       9  ENSTINET-, EG
 37074          14          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/CEDIA/data-ASnet-AFRINIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
396982        2687       3596     387  GOOGLE-CLOUD-PLATFORM, US
 16509        2131       1636     846  AMAZON-02, US
 15169         826       1997      61  GOOGLE, US
 14618         810       4019     609  AMAZON-AES, US
  2907         601       2162     465  SINET-AS Research Organization of Infor
  7497         434        180      23  CSTNET-AS-AP Computer Network Informati
  2018         370        319      71  TENET-1, ZA
   680         283       1903     249  DFN Verein zur Foerderung eines Deutsch
  1916         260        176      43  Rede Nacional de Ensino e Pesquisa, BR
 36914         257         82       3  KENET-AS, KE

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

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

   ASN  No of nets  Net Savings  Description
 16509        2131         1285  AMAZON-02, US
 15169         826          765  GOOGLE, US
  7497         434          411  CSTNET-AS-AP Computer Network Information Cente
  2018         370          299  TENET-1, ZA
 36914         257          254  KENET-AS, KE
  1916         260          217  Rede Nacional de Ensino e Pesquisa, BR
 14618         810          201  AMAZON-AES, US
  5786         197          196  UPRENET, PR
 58647         178          176  KAGAWAU-AS Kagawa University, JP
327687         166          163  RENU, UG

Complete listing at https://bgp.nsrc.org/REN/CEDIA/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
     33008  UNALLOCATED  162.248.66.0/24          11096  FLORIDANET, US
     64507  DOCUMENT     170.79.91.8/29           27817  Red Nacional Academica de Te
    394607  UNALLOCATED  216.100.93.0/24          23024  OCDE, US

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

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

Unassigned Network     ASN Information  AS Name
134.208.0.0/16       Origin:     17711  NDHU-TW National Dong Hwa University, TW
134.208.0.0/16      Transit:      7539  TWAREN-TW National Center for High-perfo
192.31.196.0/24      Origin:       112  RESERVED, ZZ
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL
198.135.168.0/24     Origin:     14618  AMAZON-AES, US
198.135.168.0/24    Transit:     16509  AMAZON-02, US
202.58.231.0/24      Origin:    134096  EHEALTHNSW-AS-AP eHealth NSW, AU
202.58.231.0/24     Transit:      7575  AARNET-AS-AP Australian Academic and Res

Complete listing at https://bgp.nsrc.org/REN/CEDIA/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       /11:4       /12:19      
/13:34      /14:81      /15:161     /16:2093    /17:503     /18:471     
/19:720     /20:2778    /21:1019    /22:1647    /23:1706    /24:13643   
/25:91      /26:72      /27:79      /28:21      /29:86      /30:41      
/31:35      /32:13      

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

   ASN  No of nets  Total ann.  Description
 16509         292        2131  AMAZON-02, US
 15169         275         826  GOOGLE, US
 14618         263         810  AMAZON-AES, US
 36914         245         257  KENET-AS, KE
396982         196        2687  GOOGLE-CLOUD-PLATFORM, US
  8895         158         163  ISU Internet Services Unit ISU, SA
 27947          98         125  Telconet S.A, EC
 32440          80         109  LONI, US
 23024          52         113  OCDE, US
  1916          39         260  Rede Nacional de Ensino e Pesquisa, BR

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

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

   1:2         3:73        5:20        8:28       12:1        13:45     
  14:89       15:68       16:112      18:63       23:111      24:3      
  31:9        34:20       35:47       38:9        40:1        41:121    
  42:10       43:1        44:8        45:60       46:11       47:1      
  49:9        50:2        52:558      54:228      58:1        59:19     
  60:4        61:3        62:12       63:36       64:162      65:13     
  66:69       67:60       68:11       69:36       70:41       71:3      
  72:13       74:135      76:46       77:11       78:3        79:10     
  80:14       81:26       82:6        83:6        84:10       85:46     
  86:10       87:2        88:1        89:17       91:57       92:4      
  93:4        94:4        95:2        96:7        97:1        98:11     
  99:47      101:3       102:37      103:288     104:218     107:33     
 108:102     109:12      111:16      114:31      115:1       116:8      
 117:61      118:32      119:18      121:28      122:8       123:8      
 124:39      125:4       128:87      129:47      130:142     131:62     
 132:59      133:152     134:105     135:3       136:293     137:147    
 138:12      139:17      140:38      141:4       142:276     143:21     
 144:39      145:3       146:143     147:66      148:200     149:17     
 150:43      151:16      152:140     153:14      154:31      155:73     
 156:69      157:23      158:40      159:148     160:29      161:36     
 162:85      163:85      164:20      165:50      166:1       167:22     
 168:157     169:12      170:121     171:1       172:114     173:114    
 174:2       175:26      176:11      177:5       178:1       179:9      
 180:15      182:1       184:3       185:103     186:3       187:18     
 188:19      189:3       190:5       191:13      192:1474    193:306    
 194:129     195:86      196:203     197:162     198:487     199:305    
 200:331     201:36      202:629     203:430     204:369     205:147    
 206:204     207:190     208:132     209:166     210:189     211:14     
 212:170     213:15      216:165     217:11      218:22      219:5      
 220:16      222:2       223:14     

End of report


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