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

REN Routing Table Report cscora at bgp.nsrc.org
Sat Dec 28 18:30:42 UTC 2024


IPv4 R&E Routing Table Report   18:30 GMT Sat 28 Dec, 2024

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

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

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

BGP routing table entries examined:                               18198
    Prefixes after maximum aggregation (per Origin AS):           10323
    Deaggregation factor:                                          1.76
    Unique aggregates announced (without unneeded subnets):       11370
    Number of IPv4 prefixes with a valid ROA:                      6674
    Number of IPv4 prefixes with an invalid ROA:                      2
    Number of IPv4 prefixes with no ROA:                          11522
Total ASes present in the Internet Routing Table:                  2739
    Prefixes per ASN:                                              6.64
Origin-only ASes present in the Internet Routing Table:            2360
Origin ASes announcing only one prefix:                            1058
Transit ASes present in the Internet Routing Table:                 379
Transit-only ASes present in the Internet Routing Table:             73
Paths with bogon ASNs present in the IPv4 Routing Table:              0
Average AS path length visible in the Internet Routing Table:       4.6
    Max AS path length visible:                                      28
    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:                      46010
Number of 32-bit ASNs visible in the Routing Table:                 664
Prefixes from 32-bit ASNs in the Routing Table:                    1814
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:                    197166592
    Equivalent to 11 /8s, 192 /16s and 134 /24s
    Percentage of available address space announced:                5.3
    Percentage of allocated address space announced:                5.3
    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:        1759

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

Prefixes being announced by APNIC Region ASes:                     4664
    Total APNIC prefixes after maximum aggregation:                2253
    APNIC Deaggregation factor:                                    2.07
Prefixes being announced from the APNIC address blocks:            4663
    Unique aggregates announced from the APNIC address blocks:     2604
APNIC Region origin ASes present in the Internet Routing Table:     561
    APNIC Prefixes per ASN:                                        8.31
APNIC Region origin ASes announcing only one prefix:                240
APNIC Region transit ASes present in the Internet Routing Table:     58
Average APNIC Region AS path length visible:                        4.8
    Max APNIC Region AS path length visible:                         28
Number of APNIC region 32-bit ASNs visible in the Routing Table:    208
Number of APNIC addresses announced to Internet:               45547776
    Equivalent to 2 /8s, 183 /16s and 1 /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:                      8063
    Total ARIN prefixes after maximum aggregation:                 4548
    ARIN Deaggregation factor:                                     1.77
Prefixes being announced from the ARIN address blocks:             8078
    Unique aggregates announced from the ARIN address blocks:      4972
ARIN Region origin ASes present in the Internet Routing Table:     1236
    ARIN Prefixes per ASN:                                         6.54
ARIN Region origin ASes announcing only one prefix:                 437
ARIN Region transit ASes present in the Internet Routing Table:     154
Average ARIN Region AS path length visible:                         4.7
    Max ARIN Region AS path length visible:                          16
Number of ARIN region 32-bit ASNs visible in the Routing Table:     207
Number of ARIN addresses announced to Internet:                86887680
    Equivalent to 5 /8s, 45 /16s and 205 /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:                      3576
    Total RIPE prefixes after maximum aggregation:                 2873
    RIPE Deaggregation factor:                                     1.24
Prefixes being announced from the RIPE address blocks:             3563
    Unique aggregates announced from the RIPE address blocks:      2914
RIPE Region origin ASes present in the Internet Routing Table:      671
    RIPE Prefixes per ASN:                                         5.31
RIPE Region origin ASes announcing only one prefix:                 300
RIPE Region transit ASes present in the Internet Routing Table:     110
Average RIPE Region AS path length visible:                         4.0
    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:                58570752
    Equivalent to 3 /8s, 125 /16s and 184 /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:                    1267
    Total LACNIC prefixes after maximum aggregation:                475
    LACNIC Deaggregation factor:                                   2.67
Prefixes being announced from the LACNIC address blocks:           1265
    Unique aggregates announced from the LACNIC address blocks:     659
LACNIC Region origin ASes present in the Internet Routing Table:    147
    LACNIC Prefixes per ASN:                                       8.61
LACNIC Region origin ASes announcing only one prefix:                52
LACNIC Region transit ASes present in the Internet Routing Table:    22
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        14
Number of LACNIC region 32-bit ASNs visible in the Routing Table:    60
Number of LACNIC addresses announced to Internet:               3734528
    Equivalent to 0 /8s, 56 /16s and 252 /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:                    627
    Total AfriNIC prefixes after maximum aggregation:               173
    AfriNIC Deaggregation factor:                                  3.62
Prefixes being announced from the AfriNIC address blocks:           626
    Unique aggregates announced from the AfriNIC address blocks:    218
AfriNIC Region origin ASes present in the Internet Routing Table:    50
    AfriNIC Prefixes per ASN:                                     12.52
AfriNIC Region origin ASes announcing only one prefix:               29
AfriNIC Region transit ASes present in the Internet Routing Table:   12
Average AfriNIC Region AS path length visible:                      2.7
    Max AfriNIC Region AS path length visible:                       18
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:   31
Number of AfriNIC addresses announced to Internet:              2423296
    Equivalent to 0 /8s, 36 /16s and 250 /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         620       2202     461  SINET-AS Research Organization of Informa
  7497         445        180      24  CSTNET-AS-AP Computer Network Information
  1237         191         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/UbuntuNet/data-ASnet-APNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2152         510        507      99  CENIC-2152, US
  2920         225         44      51  LACOE, US
   376         201        162     150  RISQ-AS, CA
 18558         141         18       5  NETBLK-RCOEK, US
    81         128        519      34  NCREN, US
 23024          97          7      19  OCDE, US
 21976          91         50      17  NJEDGE-NET, US
   237          82        541      48  MERIT-AS-14, US
  1736          79         16       1  MU-AS, US
  3477          74         63      41  NOAA-NWAVE, US

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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
  1930          79         88      74  RCCN Fundacao para a Ciencia e a Tecnolog
   553          78        462      78  BELWUE BelWue-Koordination, DE
  3267          78         29      68  NIKS, RU

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  1916         157        177      40  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 
  4270          44         16       1  Red de Interconexion Universitaria, AR
 28614          38          2       2  Fundacao Universidade Regional de Blumena
  3596          37          8       4  Universidad Autonoma Metropolitana, MX
 20191          28         16       1  Pontificia Universidad Catolica de Chile,

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2018         381        319      71  TENET-1, ZA
  8094          47         48      18  PUKNET, ZA
 37215          32          8       1  MAREN, MW
 36914          27         82       3  KENET-AS, KE
  6879          24          2       9  ENSTINET-, EG
 37661          12          8       4  NRaE1-AS, NG
327700          12         16       1  MoRENet, MZ
 37501          11         49       6  UOFS, ZA
 36982           8         33       8  UCT, ZA
 37074           8          8       2  UG-AS, GH

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

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  2907         620       2202     461  SINET-AS Research Organization of Informa
  2152         510        507      99  CENIC-2152, US
  7497         445        180      24  CSTNET-AS-AP Computer Network Information
  2018         381        319      71  TENET-1, ZA
   680         284       1899     249  DFN Verein zur Foerderung eines Deutschen
  2920         225         44      51  LACOE, US
   376         201        162     150  RISQ-AS, CA
  1237         191         74     145  KREONET-AS-KR KISTI, KR
   786         185       1767     182  JANET Jisc Services Limited, GB
 58647         182         18       2  KAGAWAU-AS Kagawa University, JP

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

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

   ASN  No of nets  Net Savings  Description
  7497         445          421  CSTNET-AS-AP Computer Network Information Cente
  2152         510          411  CENIC-2152, US
  2018         381          310  TENET-1, ZA
 58647         182          180  KAGAWAU-AS Kagawa University, JP
  2920         225          174  LACOE, US
 18558         141          136  NETBLK-RCOEK, US
 55824         145          125  NKN-CORE-NW NKN Core Network, IN
  8895         129          124  ISU Internet Services Unit ISU, SA
  1916         157          117  Rede Nacional de Ensino e Pesquisa, BR
    81         128           94  NCREN, US

Complete listing at https://bgp.nsrc.org/REN/UbuntuNet/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/UbuntuNet/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
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/UbuntuNet/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       /11:1       /12:11      
/13:18      /14:35      /15:117     /16:1935    /17:410     /18:446     
/19:561     /20:826     /21:866     /22:1419    /23:1542    /24:10009   
/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
  8895         124         129  ISU Internet Services Unit ISU, SA
  2152          61         510  CENIC-2152, US
 23024          37          97  OCDE, US
 32440          36          61  LONI, US
  3267          34          78  NIKS, RU
 28614          32          38  Fundacao Universidade Regional de Blumenau, BR
 46115          32          35  LUTHER, US
200521          32          54  SEAP-AGE, ES
 25977          30          44  HCCS, US
 27609          29          45  USC-UNIVERSITY-HOSPITAL, US

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

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

   1:2         5:15        8:2        12:2        14:92       23:6      
  24:3        31:1        35:3        37:8        38:11       41:51     
  42:11       44:4        45:50       46:4        47:1        49:10     
  50:2        52:1        59:19       60:5        61:3        62:8      
  63:32       64:44       65:5        66:43       67:38       68:12     
  69:18       70:2        71:1        72:7        74:52       76:40     
  77:10       78:3        79:10       80:12       81:25       82:7      
  83:7        84:5        85:45       86:5        87:1        89:11     
  91:42       92:2        93:13       94:2        95:2        96:5      
  97:1        98:2       101:1       102:11      103:293     104:79     
 108:8       109:5       111:20      113:1       114:24      116:9      
 117:61      118:33      119:23      121:27      122:8       123:8      
 124:41      125:5       128:55      129:37      130:96      131:61     
 132:65      133:155     134:105     136:11      137:98      138:58     
 139:4       140:31      141:3       142:38      143:26      144:22     
 145:2       146:136     147:60      148:195     149:13      150:70     
 151:9       152:131     153:14      154:41      155:64      156:135    
 157:26      158:33      159:118     160:33      161:17      162:22     
 163:58      164:11      165:49      166:1       167:26      168:119    
 169:7       170:87      171:1       172:2       173:7       175:16     
 177:5       179:13      180:16      181:1       182:11      184:8      
 185:52      186:3       187:22      188:14      189:3       190:34     
 191:3       192:1382    193:272     194:136     195:77      196:146    
 197:4       198:521     199:246     200:247     201:37      202:634    
 203:437     204:390     205:171     206:207     207:301     208:65     
 209:152     210:218     211:3       212:163     213:6       216:92     
 217:12      218:23      219:6       220:16      222:2       223:15     


End of report


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