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

REN Routing Table Report cscora at bgp.nsrc.org
Thu Dec 26 22:00:44 UTC 2024


IPv4 R&E Routing Table Report   22:00 GMT Thu 26 Dec, 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:                               24893
    Prefixes after maximum aggregation (per Origin AS):           13612
    Deaggregation factor:                                          1.83
    Unique aggregates announced (without unneeded subnets):       15884
    Number of IPv4 prefixes with a valid ROA:                     12588
    Number of IPv4 prefixes with an invalid ROA:                     20
    Number of IPv4 prefixes with no ROA:                          12285
Total ASes present in the Internet Routing Table:                  2794
    Prefixes per ASN:                                              8.91
Origin-only ASes present in the Internet Routing Table:            2417
Origin ASes announcing only one prefix:                            1076
Transit ASes present in the Internet Routing Table:                 377
Transit-only ASes present in the Internet Routing Table:             64
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:                      45999
Number of 32-bit ASNs visible in the Routing Table:                 682
Prefixes from 32-bit ASNs in the Routing Table:                    1879
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:              9
Number of addresses announced to Internet:                    242172720
    Equivalent to 14 /8s, 111 /16s and 67 /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:               99.6
Total number of prefixes smaller than registry allocations:        3452

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

Prefixes being announced by APNIC Region ASes:                     4697
    Total APNIC prefixes after maximum aggregation:                2261
    APNIC Deaggregation factor:                                    2.08
Prefixes being announced from the APNIC address blocks:            4811
    Unique aggregates announced from the APNIC address blocks:     2732
APNIC Region origin ASes present in the Internet Routing Table:     562
    APNIC Prefixes per ASN:                                        8.56
APNIC Region origin ASes announcing only one prefix:                239
APNIC Region transit ASes present in the Internet Routing Table:     59
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:    210
Number of APNIC addresses announced to Internet:               45651520
    Equivalent to 2 /8s, 184 /16s and 150 /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:                     13994
    Total ARIN prefixes after maximum aggregation:                 7733
    ARIN Deaggregation factor:                                     1.81
Prefixes being announced from the ARIN address blocks:            13710
    Unique aggregates announced from the ARIN address blocks:      9047
ARIN Region origin ASes present in the Internet Routing Table:     1289
    ARIN Prefixes per ASN:                                        10.64
ARIN Region origin ASes announcing only one prefix:                 450
ARIN Region transit ASes present in the Internet Routing Table:     156
Average ARIN Region AS path length visible:                         3.1
    Max ARIN Region AS path length visible:                          15
Number of ARIN region 32-bit ASNs visible in the Routing Table:     217
Number of ARIN addresses announced to Internet:               131279408
    Equivalent to 7 /8s, 211 /16s and 42 /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:                      3626
    Total RIPE prefixes after maximum aggregation:                 2906
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3780
    Unique aggregates announced from the RIPE address blocks:      3165
RIPE Region origin ASes present in the Internet Routing Table:      670
    RIPE Prefixes per ASN:                                         5.64
RIPE Region origin ASes announcing only one prefix:                 300
RIPE Region transit ASes present in the Internet Routing Table:     109
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:                58644864
    Equivalent to 3 /8s, 126 /16s and 217 /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:                    1437
    Total LACNIC prefixes after maximum aggregation:                535
    LACNIC Deaggregation factor:                                   2.69
Prefixes being announced from the LACNIC address blocks:           1444
    Unique aggregates announced from the LACNIC address blocks:     708
LACNIC Region origin ASes present in the Internet Routing Table:    155
    LACNIC Prefixes per ASN:                                       9.32
LACNIC Region origin ASes announcing only one prefix:                55
LACNIC Region transit ASes present in the Internet Routing Table:    23
Average LACNIC Region AS path length visible:                       4.1
    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:               4166464
    Equivalent to 0 /8s, 63 /16s and 147 /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:                   1138
    Total AfriNIC prefixes after maximum aggregation:               176
    AfriNIC Deaggregation factor:                                  6.47
Prefixes being announced from the AfriNIC address blocks:          1139
    Unique aggregates announced from the AfriNIC address blocks:    223
AfriNIC Region origin ASes present in the Internet Routing Table:    53
    AfriNIC Prefixes per ASN:                                     21.49
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:                      2.9
    Max AfriNIC Region AS path length visible:                       19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   31
Number of AfriNIC addresses announced to Internet:              2426368
    Equivalent to 0 /8s, 37 /16s and 6 /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         635       2201     462  SINET-AS Research Organization of Informa
  7497         444        180      24  CSTNET-AS-AP Computer Network Information
  1237         193         74     145  KREONET-AS-KR KISTI, KR
 58647         182         18       2  KAGAWAU-AS Kagawa University, JP
  7575         173        313     116  AARNET-AS-AP Australian Academic and Rese
 55824         145         19      20  NKN-CORE-NW NKN Core Network, IN
  4538         139       4192      71  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          59          4      34  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        4047       4911    1955  AMAZON-02, US
 14618        1009       4501     766  AMAZON-AES, US
  2152         510        507      99  CENIC-2152, US
  2920         225         44      51  LACOE, US
   668         205        646     174  DNIC-AS-00668, US
   376         201        162     150  RISQ-AS, CA
  5786         187         16       1  UPRENET, PR
 18558         141         18       5  NETBLK-RCOEK, US
     1         128          2      49  LVLT-1, US
    81         128        519      34  NCREN, 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         284       1899     249  DFN Verein zur Foerderung eines Deutschen
   786         185       1767     182  JANET Jisc Services Limited, GB
  8895         129         24       5  ISU Internet Services Unit ISU, SA
   559         114        533     104  SWITCH Peering requests: peering at switch.c
  1103          96       1743      83  SURFNET-NL SURFnet, The Netherlands, NL
  2614          93         26      73  ROEDUNET, RO
   137          82        677      77  ASGARR Consortium GARR, IT
  8987          82        227      59  AMAZON EXPANSION, IE
  1930          79         88      74  RCCN Fundacao para a Ciencia e a Tecnolog
   553          78        462      78  BELWUE BelWue-Koordination, DE

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         218        178      43  Rede Nacional de Ensino e Pesquisa, BR
 28391         154         10      68  Universidad Juarez Autonoma de Tabasco, M
 11340         109         25      52  Red Universitaria Nacional, CL
271640          67          8       1  UNIVERSIDADE FEDERAL DE VICOSA, BR
 61468          52          5      17  CEDIA, EC
  2715          49         99      35  Fundacao Carlos Chagas Filho de Amparo a 
 19611          48         17       2  Associacao Antonio Vieira - Unisinos, BR
  4270          46         16       1  Red de Interconexion Universitaria, AR
  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         542         82       3  KENET-AS, KE
  2018         378        319      71  TENET-1, ZA
  8094          47         48      18  PUKNET, ZA
 37215          32          8       1  MAREN, MW
  6879          24          2       9  ENSTINET-, EG
327700          13         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/Internet2/data-ASnet-AFRINIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509        4047       4911    1955  AMAZON-02, US
 14618        1009       4501     766  AMAZON-AES, US
  2907         635       2201     462  SINET-AS Research Organization of Informa
 36914         542         82       3  KENET-AS, KE
  2152         510        507      99  CENIC-2152, US
  7497         444        180      24  CSTNET-AS-AP Computer Network Information
  2018         378        319      71  TENET-1, ZA
   680         284       1899     249  DFN Verein zur Foerderung eines Deutschen
  2920         225         44      51  LACOE, US
  1916         218        178      43  Rede Nacional de Ensino e Pesquisa, BR

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         542          539  KENET-AS, KE
  7497         444          420  CSTNET-AS-AP Computer Network Information Cente
  2152         510          411  CENIC-2152, US
  2018         378          307  TENET-1, ZA
 14618        1009          243  AMAZON-AES, US
  5786         187          186  UPRENET, PR
 58647         182          180  KAGAWAU-AS Kagawa University, JP
  1916         218          175  Rede Nacional de Ensino e Pesquisa, BR
  2920         225          174  LACOE, US
  2907         635          173  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
64.186.3.0/24        Origin:     16509  AMAZON-02, US
64.186.3.0/24       Transit:     11537  INTERNET2-RESEARCH-EDU, US
103.165.160.0/24     Origin:     16509  AMAZON-02, US
103.165.160.0/24    Transit:     11537  INTERNET2-RESEARCH-EDU, US
164.160.192.0/21     Origin:     37661  NRaE1-AS, NG
164.160.192.0/21    Transit:     37288  WACREN, SN
192.225.212.0/24     Origin:     14618  AMAZON-AES, US
192.225.212.0/24    Transit:     16509  AMAZON-02, US
192.225.223.0/24     Origin:     14618  AMAZON-AES, US
192.225.223.0/24    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      /15:173     /16:2070    /17:490     /18:506     
/19:645     /20:1008    /21:1128    /22:1753    /23:1933    /24:14797   
/25:43      /26:67      /27:98      /28:11      /29:59      /30:0       
/31:0       /32:3       

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

   ASN  No of nets  Total ann.  Description
 16509         669        4047  AMAZON-02, US
 36914         518         542  KENET-AS, KE
 14618         315        1009  AMAZON-AES, US
  8895         124         129  ISU Internet Services Unit ISU, SA
  2152          61         510  CENIC-2152, US
  1916          60         218  Rede Nacional de Ensino e Pesquisa, BR
     1          42         128  LVLT-1, US
 23024          37          97  OCDE, US
 32440          36          61  LONI, US
  3267          34          77  NIKS, RU

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

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

   1:3         3:169       4:2         5:20        6:4         8:2      
  12:2        13:56       14:92       15:103      16:129      18:154    
  23:49       24:3        31:3        35:40       37:8        38:11     
  40:5        41:222      42:11       44:4        45:77       46:10     
  47:1        49:10       50:11       52:830      54:178      58:1      
  59:19       60:5        61:3        62:7        63:38       64:146    
  65:25       66:98       67:67       68:27       69:57       70:22     
  71:16       72:18       74:77       75:1        76:48       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     
  91:52       92:4        93:45       94:2        95:2        96:7      
  97:1        98:14       99:68      101:1       102:14      103:336    
 104:134     107:8       108:35      109:7       111:21      113:1      
 114:24      115:1       116:14      117:66      118:33      119:23     
 121:28      122:11      123:8       124:41      125:5       128:55     
 129:40      130:163     131:73      132:65      133:155     134:112    
 135:2       136:213     137:114     138:65      139:20      140:47     
 141:13      142:62      143:34      144:39      145:4       146:139    
 147:75      148:206     149:20      150:73      151:36      152:142    
 153:14      154:41      155:104     156:134     157:40      158:44     
 159:169     160:37      161:41      162:74      163:76      164:23     
 165:77      166:5       167:37      168:174     169:15      170:184    
 171:1       172:19      173:37      174:2       175:16      176:4      
 177:6       178:1       179:14      180:16      181:1       182:11     
 184:11      185:83      186:3       187:22      188:16      189:3      
 190:18      191:13      192:1597    193:292     194:125     195:74     
 196:145     197:329     198:607     199:348     200:267     201:37     
 202:658     203:451     204:433     205:206     206:246     207:344    
 208:132     209:195     210:218     211:3       212:168     213:19     
 214:8       216:213     217:14      218:23      219:6       220:16     
 222:2       223:15     

End of report


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