[REN-BGP-stats] Weekly Global R&E Routing Table Report

REN Routing Table Report cscora at frr.nsrc.org
Sat Oct 23 22:30:28 UTC 2021


This is an automated weekly mailing describing the state of the Global
Research & Education Routing Table as seen from NSRC's collector.

Daily listings are sent to ren-bgp-stats-all at lists.nsrc.org.

For historical data, please see https://bgp.nsrc.org.

If you have any comments please contact Philip Smith <philip at nsrc.org>.

Global R&E Routing Table Report   22:30 GMT Sat 23 Oct, 2021

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

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

BGP routing table entries examined:                               19056
    Prefixes after maximum aggregation (per Origin AS):           10724
    Deaggregation factor:                                          1.78
    Unique aggregates announced (without unneeded subnets):       12109
Total ASes present in the Internet Routing Table:                  2797
    Prefixes per ASN:                                              6.81
Origin-only ASes present in the Internet Routing Table:            2408
Origin ASes announcing only one prefix:                            1108
Transit ASes present in the Internet Routing Table:                 389
Transit-only ASes present in the Internet Routing Table:             58
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      14
    Max AS path prepend of ASN ( 10497)                              11
Prefixes from unregistered ASNs in the Routing Table:                27
    Number of instances of unregistered ASNs:                        27
Number of 32-bit ASNs allocated by the RIRs:                      37624
Number of 32-bit ASNs visible in the Routing Table:                 624
Prefixes from 32-bit ASNs in the Routing Table:                    1838
Number of bogon 32-bit ASNs visible in the Routing Table:             0
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:              4
Number of addresses announced to Internet:                    208196445
    Equivalent to 12 /8s, 104 /16s and 211 /24s
    Percentage of available address space announced:                5.6
    Percentage of allocated address space announced:                5.6
    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:        2156

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

Prefixes being announced by APNIC Region ASes:                     4811
    Total APNIC prefixes after maximum aggregation:                2350
    APNIC Deaggregation factor:                                    2.05
Prefixes being announced from the APNIC address blocks:            4813
    Unique aggregates announced from the APNIC address blocks:     2678
APNIC Region origin ASes present in the Internet Routing Table:     587
    APNIC Prefixes per ASN:                                        8.20
APNIC Region origin ASes announcing only one prefix:                250
APNIC Region transit ASes present in the Internet Routing Table:     66
Average APNIC Region AS path length visible:                        4.3
    Max APNIC Region AS path length visible:                         13
Number of APNIC region 32-bit ASNs visible in the Routing Table:    227
Number of APNIC addresses announced to Internet:               45959020
    Equivalent to 2 /8s, 189 /16s and 71 /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, 131072-151865
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:                      8339
    Total ARIN prefixes after maximum aggregation:                 4815
    ARIN Deaggregation factor:                                     1.73
Prefixes being announced from the ARIN address blocks:             8362
    Unique aggregates announced from the ARIN address blocks:      5497
ARIN Region origin ASes present in the Internet Routing Table:     1238
    ARIN Prefixes per ASN:                                         6.75
ARIN Region origin ASes announcing only one prefix:                 441
ARIN Region transit ASes present in the Internet Routing Table:     161
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          14
Number of ARIN region 32-bit ASNs visible in the Routing Table:     160
Number of ARIN addresses announced to Internet:                97231537
    Equivalent to 5 /8s, 203 /16s and 162 /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:                      3394
    Total RIPE prefixes after maximum aggregation:                 2720
    RIPE Deaggregation factor:                                     1.25
Prefixes being announced from the RIPE address blocks:             3383
    Unique aggregates announced from the RIPE address blocks:      2750
RIPE Region origin ASes present in the Internet Routing Table:      672
    RIPE Prefixes per ASN:                                         5.03
RIPE Region origin ASes announcing only one prefix:                 324
RIPE Region transit ASes present in the Internet Routing Table:     106
Average RIPE Region AS path length visible:                         3.9
    Max RIPE Region AS path length visible:                          14
Number of RIPE region 32-bit ASNs visible in the Routing Table:     132
Number of RIPE addresses announced to Internet:                58196160
    Equivalent to 3 /8s, 120 /16s and 0 /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
                       196608-213403
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:                    1567
    Total LACNIC prefixes after maximum aggregation:                637
    LACNIC Deaggregation factor:                                   2.46
Prefixes being announced from the LACNIC address blocks:           1576
    Unique aggregates announced from the LACNIC address blocks:     886
LACNIC Region origin ASes present in the Internet Routing Table:    181
    LACNIC Prefixes per ASN:                                       8.71
LACNIC Region origin ASes announcing only one prefix:                69
LACNIC Region transit ASes present in the Internet Routing Table:    24
Average LACNIC Region AS path length visible:                       4.4
    Max LACNIC Region AS path length visible:                        11
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    78
Number of LACNIC addresses announced to Internet:               4072576
    Equivalent to 0 /8s, 62 /16s and 36 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-272796 + 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:                    918
    Total AfriNIC prefixes after maximum aggregation:               188
    AfriNIC Deaggregation factor:                                  4.88
Prefixes being announced from the AfriNIC address blocks:           918
    Unique aggregates announced from the AfriNIC address blocks:    294
AfriNIC Region origin ASes present in the Internet Routing Table:    52
    AfriNIC Prefixes per ASN:                                     17.65
AfriNIC Region origin ASes announcing only one prefix:               24
AfriNIC Region transit ASes present in the Internet Routing Table:   13
Average AfriNIC Region AS path length visible:                      3.6
    Max AfriNIC Region AS path length visible:                       10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   27
Number of AfriNIC addresses announced to Internet:              2736128
    Equivalent to 0 /8s, 41 /16s and 192 /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         631       2141     458  SINET-AS Research Organization of Infor
  7497         429        182      24  CSTNET-AS-AP Computer Network Informati
 58647         198         18       2  KAGAWAU-AS Kagawa University, JP
  1237         191         74     135  KREONET-AS-KR KISTI, KR
  7575         175        329     121  AARNET-AS-AP Australian Academic and Re
 55824         128         19      22  NKN-CORE-NW NKN Core Network, IN
  4538         126       4192      72  ERX-CERNET-BKB China Education and Rese
  4621          81         37      10  UNINET-AS-AP UNINET-, TH
  4762          65          4       1  MAHIDOL-BORDER-AS Mahidol University, T
 23570          59          5      11  INCHEON-AS-KR UNIVERSITY OF INCHEON, KR

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  7896         250         51       7  NU-AS, US
   376         233        180     157  RISQ-AS, CA
   668         209        702     180  DNIC-AS-00668, US
  5786         196         16       1  UPRENET, PR
  2152         161        507      89  CSUNET-NW, US
 18558         137         18       4  NETBLK-RCOEK, US
   270         115        289      85  AS270, US
 23024         114          7      17  OCDE, US
  2920         112         34       6  LACOE, US
 21976          88         51      18  NJEDGE-NET, US

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
   680         276       1998     238  DFN Verein zur Foerderung eines Deutsch
   786         186       1774     183  JANET Jisc Services Limited, GB
  8895         177         24       4  ISU Internet Services Unit ISU, SA
   559         115        550     106  SWITCH Peering requests: peering at switch
  1103          98       1520      85  SURFNET-NL SURFnet, The Netherlands, NL
   137          82        677      77  ASGARR Consortium GARR, IT
   553          72        449      72  BELWUE BelWue-Koordination, DE
  2200          67        647      61  FR-RENATER Reseau National de telecommu
  2614          60         33      58  ROEDUNET, RO
  1930          57         81      52  RCCN Fundacao para a Ciencia e a Tecnol

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         204        207      42  Associacao Rede Nacional de Ensino e Pe
 28391         152         10      66  Universidad Juarez Autonoma de Tabasco,
 11340          93         24      53  Red Universitaria Nacional, CL
  1251          65         37      20  FUNDACAO DE AMPARO A PESQUISA DO ESTADO
  2715          60        102      40  Fundacao Carlos Chagas Filho de Amparo 
 52286          52          4      31  Columbus Networks Guatemala, GT
 61468          45          3      15  CEDIA, EC
 19611          44         17       2  Associacao Antonio Vieira - Unisinos, B
  4270          43         16       1  Red de Interconexion Universitaria, AR
 28614          38          2       2  Fundacao Universidade Regional de Blume

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         344        319      73  TENET-1, ZA
327687         132         28       3  RENU, UG
 36914         100         82       3  KENET-AS, KE
  2561          73          5      32  EUN, EG
  8094          50         48       4  PUKNET, ZA
327700          42         16       1  MoRENet, MZ
 37215          32          8       1  MAREN, MW
  6879          24          2       9  ENSTINET-, EG
 37182          14          8       1  TERNET, TZ
 37074          11          8       2  UG-AS, GH

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         631       2141     458  SINET-AS Research Organization of Infor
  7497         429        182      24  CSTNET-AS-AP Computer Network Informati
  2018         344        319      73  TENET-1, ZA
   680         276       1998     238  DFN Verein zur Foerderung eines Deutsch
  7896         250         51       7  NU-AS, US
   376         233        180     157  RISQ-AS, CA
   668         209        702     180  DNIC-AS-00668, US
  1916         204        207      42  Associacao Rede Nacional de Ensino e Pe
 58647         198         18       2  KAGAWAU-AS Kagawa University, JP
  5786         196         16       1  UPRENET, PR

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

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

   ASN  No of nets  Net Savings  Description
  7497         429          405  CSTNET-AS-AP Computer Network Information Cente
  2018         344          271  TENET-1, ZA
  7896         250          243  NU-AS, US
 58647         198          196  KAGAWAU-AS Kagawa University, JP
  5786         196          195  UPRENET, PR
  8895         177          173  ISU Internet Services Unit ISU, SA
  1916         204          162  Associacao Rede Nacional de Ensino e Pesquisa, 
 18558         137          133  NETBLK-RCOEK, US
327687         132          129  RENU, UG
 55824         128          106  NKN-CORE-NW NKN Core Network, IN

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

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     65248  PRIVATE      134.171.169.0/24         11340  Red Universitaria Nacional, 
     14822  UNALLOCATED  140.163.0.0/16           10466  MAGPI, US
     14822  UNALLOCATED  140.163.0.0/17           10466  MAGPI, US
     14822  UNALLOCATED  140.163.6.0/24           10466  MAGPI, US
     14822  UNALLOCATED  140.163.64.0/24          10466  MAGPI, US
     14822  UNALLOCATED  140.163.70.0/24          10466  MAGPI, US
     14822  UNALLOCATED  140.163.128.0/17         10466  MAGPI, US
     22063  UNALLOCATED  153.10.0.0/16             2152  CSUNET-NW, US
     65105  PRIVATE      165.98.16.0/24           27750  Cooperacion Latino Americana
     65105  PRIVATE      165.98.18.0/24           27750  Cooperacion Latino Americana

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             1103  SURFNET-NL SURFnet, The Netherlands, NL

Complete listing at https://bgp.nsrc.org/REN/CANARIE/data-dsua

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

Unassigned Network     ASN Information  AS Name
192.31.196.0/24      Origin:       112  UNASSIGNED
192.31.196.0/24     Transit:      1103  SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24       Origin:      1103  SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24      Transit:      2603  NORDUNET, DK
192.107.242.0/24     Origin:    394784  UNASSIGNED
192.107.242.0/24    Transit:     40831  PHS, US
205.166.145.0/24     Origin:    394784  UNASSIGNED
205.166.145.0/24    Transit:     40831  PHS, US

Complete listing at https://bgp.nsrc.org/REN/CANARIE/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       /11:1       /12:10      
/13:18      /14:37      /15:124     /16:2042    /17:386     /18:432     
/19:576     /20:888     /21:905     /22:1434    /23:1549    /24:10329   
/25:81      /26:67      /27:56      /28:50      /29:34      /30:19      
/31:0       /32:15      

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

   ASN  No of nets  Total ann.  Description
  8895         172         177  ISU Internet Services Unit ISU, SA
 36914          86         100  KENET-AS, KE
 23024          53         114  OCDE, US
327700          36          42  MoRENet, MZ
 58647          34         198  KAGAWAU-AS Kagawa University, JP
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 25977          31          45  HCCS, US
263282          30          37  FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
 18632          29          55  VOLCANO-VISION, US
 27609          29          45  USC-UNIVERSITY-HOSPITAL, US

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

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

   1:5         5:15        6:4         8:2        12:1        14:84     
  18:41       23:9        24:6        31:6        37:6        38:9      
  40:1        41:150      42:8        44:5        45:68       46:7      
  47:1        49:10       50:4        52:1        58:1        59:20     
  60:4        61:3        62:7        63:38       64:49       65:4      
  66:51       67:44       68:8        69:21       71:1        72:15     
  74:20       76:33       77:6        78:3        79:10       80:18     
  81:27       82:5        83:7        84:5        85:33       86:9      
  87:1        88:1        89:10       91:47       92:1        93:19     
  94:4        95:5        96:5        97:1        98:2       101:6      
 102:17      103:313     104:78      106:1       107:16      108:8      
 109:9       110:3       111:20      112:4       114:23      116:5      
 117:61      118:32      119:19      121:26      122:8       123:8      
 124:39      125:5       128:83      129:175     130:97      131:89     
 132:61      133:138     134:43      136:189     137:137     138:8      
 139:5       140:48      141:2       142:43      143:35      144:54     
 146:125     147:61      148:160     149:13      150:39      151:6      
 152:79      153:11      154:24      155:50      156:68      157:25     
 158:42      159:117     160:25      161:17      162:21      163:65     
 164:41      165:54      166:1       167:16      168:163     169:10     
 170:67      171:1       172:2       173:6       175:31      176:8      
 177:10      178:1       179:12      180:21      181:12      182:6      
 184:2       185:39      186:3       187:18      188:13      189:3      
 190:54      191:36      192:1452    193:243     194:123     195:84     
 196:181     197:5       198:534     199:279     200:254     201:39     
 202:636     203:418     204:363     205:171     206:192     207:175    
 208:60      209:122     210:184     211:14      212:171     213:4      
 214:7       216:80      217:14      218:25      219:8       220:17     
 222:5       223:2      

End of report


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