[REN-BGP-stats-all] IPv4 R&E Routing Table Report - Internet2 (R&E) view

REN Routing Table Report cscora at bgp.nsrc.org
Fri Nov 8 22:00:45 UTC 2024


IPv4 R&E Routing Table Report   22:00 GMT Fri 08 Nov, 2024

  IPv4 BGP Table (R&E) as seen at Internet2.

Report Website:     https://bgp.nsrc.org/REN
Detailed Analysis:  https://bgp.nsrc.org/REN/Internet2/

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

BGP routing table entries examined:                               24400
    Prefixes after maximum aggregation (per Origin AS):           13525
    Deaggregation factor:                                          1.80
    Unique aggregates announced (without unneeded subnets):       15850
    Number of IPv4 prefixes with a valid ROA:                     12417
    Number of IPv4 prefixes with an invalid ROA:                     21
    Number of IPv4 prefixes with no ROA:                          11962
Total ASes present in the Internet Routing Table:                  2808
    Prefixes per ASN:                                              8.69
Origin-only ASes present in the Internet Routing Table:            2433
Origin ASes announcing only one prefix:                            1076
Transit ASes present in the Internet Routing Table:                 375
Transit-only ASes present in the Internet Routing Table:             62
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       3.4
    Max AS path length visible:                                      27
    Max AS path prepend of ASN (138136)                              20
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:                      45808
Number of 32-bit ASNs visible in the Routing Table:                 698
Prefixes from 32-bit ASNs in the Routing Table:                    1908
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:              3
Number of addresses announced to Internet:                    242197712
    Equivalent to 14 /8s, 111 /16s and 164 /24s
    Percentage of available address space announced:                6.5
    Percentage of allocated address space announced:                5.1
    Percentage of available address space allocated:              127.5
    Percentage of address space in use by end-sites:               99.6
Total number of prefixes smaller than registry allocations:       11422

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

Prefixes being announced by APNIC Region ASes:                     4691
    Total APNIC prefixes after maximum aggregation:                2301
    APNIC Deaggregation factor:                                    2.04
Prefixes being announced from the APNIC address blocks:             483
    Unique aggregates announced from the APNIC address blocks:      401
APNIC Region origin ASes present in the Internet Routing Table:     584
    APNIC Prefixes per ASN:                                        0.83
APNIC Region origin ASes announcing only one prefix:                244
APNIC Region transit ASes present in the Internet Routing Table:     60
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:    233
Number of APNIC addresses announced to Internet:                7205952
    Equivalent to 0 /8s, 109 /16s and 244 /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    43/8,  45/8, 146/8, 150/8, 160/8, 163/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                     13508
    Total ARIN prefixes after maximum aggregation:                 7620
    ARIN Deaggregation factor:                                     1.77
Prefixes being announced from the ARIN address blocks:             5332
    Unique aggregates announced from the ARIN address blocks:      4017
ARIN Region origin ASes present in the Internet Routing Table:     1283
    ARIN Prefixes per ASN:                                         4.16
ARIN Region origin ASes announcing only one prefix:                 447
ARIN Region transit ASes present in the Internet Routing Table:     154
Average ARIN Region AS path length visible:                         2.9
    Max ARIN Region AS path length visible:                          15
Number of ARIN region 32-bit ASNs visible in the Routing Table:     215
Number of ARIN addresses announced to Internet:                29286656
    Equivalent to 1 /8s, 190 /16s and 225 /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     66/8, 139/8, 144/8, 149/8, 162/8, 164/8, 192/8,
                       198/8, 199/8, 204/8, 205/8, 207/8, 208/8, 216/8,
                      

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                      3613
    Total RIPE prefixes after maximum aggregation:                 2890
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:              878
    Unique aggregates announced from the RIPE address blocks:       835
RIPE Region origin ASes present in the Internet Routing Table:      672
    RIPE Prefixes per ASN:                                         1.31
RIPE Region origin ASes announcing only one prefix:                 300
RIPE Region transit ASes present in the Internet Routing Table:     108
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:     159
Number of RIPE addresses announced to Internet:                10413312
    Equivalent to 0 /8s, 158 /16s and 229 /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    152/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                    1528
    Total LACNIC prefixes after maximum aggregation:                541
    LACNIC Deaggregation factor:                                   2.82
Prefixes being announced from the LACNIC address blocks:            251
    Unique aggregates announced from the LACNIC address blocks:     198
LACNIC Region origin ASes present in the Internet Routing Table:    155
    LACNIC Prefixes per ASN:                                       1.62
LACNIC Region origin ASes announcing only one prefix:                54
LACNIC Region transit ASes present in the Internet Routing Table:    23
Average LACNIC Region AS path length visible:                       4.0
    Max LACNIC Region AS path length visible:                        13
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    63
Number of LACNIC addresses announced to Internet:               1052416
    Equivalent to 0 /8s, 16 /16s and 15 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks  128/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                   1059
    Total AfriNIC prefixes after maximum aggregation:               172
    AfriNIC Deaggregation factor:                                  6.16
Prefixes being announced from the AfriNIC address blocks:            83
    Unique aggregates announced from the AfriNIC address blocks:     50
AfriNIC Region origin ASes present in the Internet Routing Table:    51
    AfriNIC Prefixes per ASN:                                      1.63
AfriNIC Region origin ASes announcing only one prefix:               31
AfriNIC Region transit ASes present in the Internet Routing Table:   11
Average AfriNIC Region AS path length visible:                      4.4
    Max AfriNIC Region AS path length visible:                       19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   28
Number of AfriNIC addresses announced to Internet:               608768
    Equivalent to 0 /8s, 9 /16s and 74 /24s
AfriNIC AS Blocks      36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 161/8,

APNIC Region per AS prefix count summary
----------------------------------------

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         595       2170     465  SINET-AS Research Organization of Informa
  7497         447        180      24  CSTNET-AS-AP Computer Network Information
  1237         193         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
  2697          60          4      35  ERX-ERNET-AS Education and Research Netwo

Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-APNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        3998       4978    1910  AMAZON-02, US
 14618        1018       4444     769  AMAZON-AES, US
   668         205        648     174  DNIC-AS-00668, US
   376         201        162     150  RISQ-AS, CA
  5786         197         16       1  UPRENET, PR
  2920         175         34       7  LACOE, US
  2152         150        507      97  CENIC-2152, US
 18558         140         18       4  NETBLK-RCOEK, US
    81         134        517      33  NCREN, US
     1         128          2      49  LVLT-1, US

Complete listing at https://bgp.nsrc.org/REN/Internet2/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         133         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          77         26      67  NIKS, RU

Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-RIPE

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         293        178      44  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
  2715          50        100      36  Fundacao Carlos Chagas Filho de Amparo a 
 61468          50          5      17  CEDIA, EC
  4270          48         16       2  Red de Interconexion Universitaria, AR
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, BR
  3596          40          8       4  Universidad Autonoma Metropolitana, MX
 28614          38          2       2  Fundacao Universidade Regional de Blumena

Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-LACNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 36914         451         82       3  KENET-AS, KE
  2018         381        319      71  TENET-1, ZA
  8094          47         48      18  PUKNET, ZA
 37215          33          8       1  MAREN, MW
  6879          24          2       9  ENSTINET-, EG
 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

Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-AFRINIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        3998       4978    1910  AMAZON-02, US
 14618        1018       4444     769  AMAZON-AES, US
  2907         595       2170     465  SINET-AS Research Organization of Informa
 36914         451         82       3  KENET-AS, KE
  7497         447        180      24  CSTNET-AS-AP Computer Network Information
  2018         381        319      71  TENET-1, ZA
  1916         293        178      44  Rede Nacional de Ensino e Pesquisa, BR
   680         281       1899     248  DFN Verein zur Foerderung eines Deutschen
   668         205        648     174  DNIC-AS-00668, US
   376         201        162     150  RISQ-AS, CA

Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet

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

   ASN  No of nets  Net Savings  Description
 36914         451          448  KENET-AS, KE
  7497         447          423  CSTNET-AS-AP Computer Network Information Cente
  2018         381          310  TENET-1, ZA
 14618        1018          249  AMAZON-AES, US
  1916         293          249  Rede Nacional de Ensino e Pesquisa, BR
  5786         197          196  UPRENET, PR
 58647         180          178  KAGAWAU-AS Kagawa University, JP
  2920         175          168  LACOE, US
 18558         140          136  NETBLK-RCOEK, US
  2907         595          130  SINET-AS Research Organization of Information a

Complete listing at https://bgp.nsrc.org/REN/Internet2/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/Internet2/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
198.135.168.0/24     Origin:     14618  AMAZON-AES, US
198.135.168.0/24    Transit:     16509  AMAZON-02, US
204.153.219.0/24     Origin:     14618  AMAZON-AES, US
204.153.219.0/24    Transit:     16509  AMAZON-02, US

Complete listing at https://bgp.nsrc.org/REN/Internet2/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       /11:3       /12:18      
/13:28      /14:58      /15:172     /16:2072    /17:489     /18:503     
/19:638     /20:997     /21:1105    /22:1719    /23:1852    /24:14454   
/25:50      /26:71      /27:96      /28:11      /29:59      /30:0       
/31:0       /32:3       

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

   ASN  No of nets  Total ann.  Description
 16509        3560        3998  AMAZON-02, US
 14618         716        1018  AMAZON-AES, US
  7497         263         447  CSTNET-AS-AP Computer Network Information Center of Chinese Academy of Sciences CNIC-CAS, CN
  5786         196         197  UPRENET, PR
 28391         154         154  Universidad Juarez Autonoma de Tabasco, MX
 58647         149         180  KAGAWAU-AS Kagawa University, JP
 36914         128         451  KENET-AS, KE
     1         126         128  LVLT-1, US
 55824         124         132  NKN-CORE-NW NKN Core Network, IN
  2018         123         381  TENET-1, ZA

Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos

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

   1:3         3:166       4:2         5:20        6:4         8:2      
  12:1        13:56       14:92       15:102      16:129      18:156    
  23:49       24:3        31:3        34:2        35:22       37:8      
  38:10       40:6        41:162      42:11       44:7        45:70     
  46:10       47:1        49:10       50:13       52:831      54:178    
  58:1        59:19       60:6        61:3        62:9        63:38     
  64:142      65:20       66:94       67:69       68:27       69:54     
  70:25       71:16       72:19       74:81       75:1        76:49     
  77:12       78:3        79:10       80:12       81:25       82:7      
  83:7        84:11       85:49       86:5        87:2        88:1      
  89:19       91:53       92:4        93:45       94:2        95:2      
  96:7        97:1        98:14       99:68      101:1       102:14     
 103:370     104:128     107:7       108:38      109:6       111:20     
 113:2       114:24      115:1       116:14      117:66      118:33     
 119:23      121:28      122:11      123:8       124:42      125:5      
 128:55      129:40      130:164     131:68      132:65      133:154    
 134:112     135:2       136:223     137:68      138:65      139:20     
 140:50      141:12      142:74      143:33      144:43      145:4      
 146:138     147:75      148:206     149:18      150:43      151:36     
 152:150     153:14      154:39      155:103     156:136     157:42     
 158:41      159:170     160:35      161:39      162:72      163:75     
 164:23      165:77      166:5       167:22      168:175     169:15     
 170:183     171:1       172:19      173:33      174:2       175:16     
 176:4       177:5       178:1       179:14      180:16      181:1      
 182:11      184:9       185:89      186:3       187:21      188:15     
 189:3       190:18      191:13      192:1597    193:293     194:126    
 195:72      196:147     197:323     198:526     199:347     200:335    
 201:37      202:652     203:450     204:414     205:167     206:243    
 207:266     208:133     209:148     210:218     211:3       212:170    
 213:19      214:8       216:209     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