[cmNOG] Weekly Global IPv4 Routing Table Report

Routing Table Analysis Role Account cscora at apnic.net
Fri Jul 26 18:02:32 UTC 2024


This is an automated weekly mailing describing the state of the Global
IPv4 Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
UKNOF, TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG and the RIPE Routing WG.

Daily listings are sent to bgp-stats at lists.apnic.net.

For historical data, please see https://thyme.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

IPv4 Routing Table Report   04:00 +10GMT Sat 27 Jul, 2024

  BGP Table (Global) as seen in Japan.

Report Website:     https://thyme.apnic.net
Detailed Analysis:  https://thyme.apnic.net/current/

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

BGP routing table entries examined:                              954508
    Prefixes after maximum aggregation (per Origin AS):          364481
    Deaggregation factor:                                          2.62
    Unique aggregates announced (without unneeded subnets):      466529
Total ASes present in the Internet Routing Table:                 76009
    Prefixes per ASN:                                             12.56
Origin-only ASes present in the Internet Routing Table:           65129
Origin ASes announcing only one prefix:                           26720
Transit ASes present in the Internet Routing Table:               10880
Transit-only ASes present in the Internet Routing Table:            535
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      84
    Max AS path prepend of ASN (152107)                              80
Prefixes from unregistered ASNs in the Routing Table:              1013
    Number of instances of unregistered ASNs:                      1019
Number of 32-bit ASNs allocated by the RIRs:                      45038
Number of 32-bit ASNs visible in the Routing Table:               36798
Prefixes from 32-bit ASNs in the Routing Table:                  189911
Number of bogon 32-bit ASNs visible in the Routing Table:            38
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            561
Number of addresses announced to Internet:                   3026104448
    Equivalent to 180 /8s, 94 /16s and 176 /24s
    Percentage of available address space announced:               81.7
    Percentage of allocated address space announced:               81.7
    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:      311994

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

Prefixes being announced by APNIC Region ASes:                   255837
    Total APNIC prefixes after maximum aggregation:               74892
    APNIC Deaggregation factor:                                    3.42
Prefixes being announced from the APNIC address blocks:          247605
    Unique aggregates announced from the APNIC address blocks:   101816
APNIC Region origin ASes present in the Internet Routing Table:   14277
    APNIC Prefixes per ASN:                                       17.34
APNIC Region origin ASes announcing only one prefix:               4351
APNIC Region transit ASes present in the Internet Routing Table:   1901
Average APNIC Region AS path length visible:                        4.7
    Max APNIC Region AS path length visible:                         84
Number of APNIC region 32-bit ASNs visible in the Routing Table:   9690
Number of APNIC addresses announced to Internet:              761746304
    Equivalent to 45 /8s, 103 /16s and 83 /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:                    278289
    Total ARIN prefixes after maximum aggregation:               125528
    ARIN Deaggregation factor:                                     2.22
Prefixes being announced from the ARIN address blocks:           282872
    Unique aggregates announced from the ARIN address blocks:    135082
ARIN Region origin ASes present in the Internet Routing Table:    19127
    ARIN Prefixes per ASN:                                        14.79
ARIN Region origin ASes announcing only one prefix:                6936
ARIN Region transit ASes present in the Internet Routing Table:    1983
Average ARIN Region AS path length visible:                         3.7
    Max ARIN Region AS path length visible:                          27
Number of ARIN region 32-bit ASNs visible in the Routing Table:    4949
Number of ARIN addresses announced to Internet:              1267324928
    Equivalent to 75 /8s, 137 /16s and 216 /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,  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:                    266065
    Total RIPE prefixes after maximum aggregation:               127863
    RIPE Deaggregation factor:                                     2.08
Prefixes being announced from the RIPE address blocks:           261558
    Unique aggregates announced from the RIPE address blocks:    165336
RIPE Region origin ASes present in the Internet Routing Table:    28672
    RIPE Prefixes per ASN:                                         9.12
RIPE Region origin ASes announcing only one prefix:               12115
RIPE Region transit ASes present in the Internet Routing Table:    3986
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          39
Number of RIPE region 32-bit ASNs visible in the Routing Table:   11903
Number of RIPE addresses announced to Internet:               714597120
    Equivalent to 42 /8s, 151 /16s and 227 /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:                  121970
    Total LACNIC prefixes after maximum aggregation:              29289
    LACNIC Deaggregation factor:                                   4.16
Prefixes being announced from the LACNIC address blocks:         119949
    Unique aggregates announced from the LACNIC address blocks:   50156
LACNIC Region origin ASes present in the Internet Routing Table:  11138
    LACNIC Prefixes per ASN:                                      10.77
LACNIC Region origin ASes announcing only one prefix:              2645
LACNIC Region transit ASes present in the Internet Routing Table:  2447
Average LACNIC Region AS path length visible:                       4.9
    Max LACNIC Region AS path length visible:                        60
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  9031
Number of LACNIC addresses announced to Internet:             177146880
    Equivalent to 10 /8s, 143 /16s and 12 /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:                  31334
    Total AfriNIC prefixes after maximum aggregation:              6257
    AfriNIC Deaggregation factor:                                  5.01
Prefixes being announced from the AfriNIC address blocks:         41963
    Unique aggregates announced from the AfriNIC address blocks:  13682
AfriNIC Region origin ASes present in the Internet Routing Table:  1865
    AfriNIC Prefixes per ASN:                                     22.50
AfriNIC Region origin ASes announcing only one prefix:              673
AfriNIC Region transit ASes present in the Internet Routing Table:  365
Average AfriNIC Region AS path length visible:                      5.0
    Max AfriNIC Region AS path length visible:                       38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1225
Number of AfriNIC addresses announced to Internet:            104921600
    Equivalent to 6 /8s, 64 /16s and 250 /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
  9808        9861       8747      79  CHINAMOBILE-CN China Mobile Communication
  7545        5658        776     668  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4935       4192      74  ERX-CERNET-BKB China Education and Resear
 18403        4185        347      23  FPT-AS-AP FPT Telecom Company, VN
  7552        3962       1331      21  VIETEL-AS-AP Viettel Group, VN
  9498        3790        511     261  BBIL-AP BHARTI Airtel Ltd., IN
  7713        3645       1044      66  TELKOMNET-AS-AP PT Telekomunikasi Indones
 45899        3241       1841     105  VNPT-AS-VN VNPT Corp, VN
 24560        2811        855     446  AIRTELBROADBAND-AS-AP Bharti Airtel Ltd.,
  4766        2274      11520     574  KIXS-AS-KR Korea Telecom, KR

Complete listing at https://thyme.apnic.net/current/data-ASnet-APNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 16509       10265      11564    3642  AMAZON-02, US
 11492        4621        307     549  CABLEONE, US
  7155        4166        287      88  VIASAT-SP-BACKBONE, US
   174        3791       8789     881  COGENT-174, US
  6327        3595       1320      79  SHAW, CA
 22773        3421       3035     188  ASN-CXA-ALL-CCI-22773-RDC, US
   749        3253      54899    2505  DNIC-AS-00749, US
 16625        3136       1322    2198  AKAMAI-AS, US
  7018        2914      23688    1831  ATT-INTERNET4, US
396982        2758       3594     409  GOOGLE-CLOUD-PLATFORM, US

Complete listing at https://thyme.apnic.net/current/data-ASnet-ARIN

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 12479        7712       1708     145  UNI2-AS, ES
 39891        4521        271      59  ALJAWWALSTC-AS, SA
 20940        3836       3396     133  AKAMAI-ASN1, NL
  9009        3565        304    1837  M247, RO
 12389        2939       2301     888  ROSTELECOM-AS, RU
 34984        2355        362     574  TELLCOM-AS, TR
  8551        1776        368      35  BEZEQ-INTERNATIONAL-AS Bezeqint Internet 
212238        1729        124    1264  CDNEXT, GB
 13188        1607        100      26  TRIOLAN, UA
  8452        1575       1852      14  TE-AS TE-AS, EG

Complete listing at https://thyme.apnic.net/current/data-ASnet-RIPE

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       11868       3305     502  UNINET, MX
 10620        3523        493     939  Telmex Colombia S.A., CO
 13999        2539        355     680  Mega Cable, S.A. de C.V., MX
 11830        2004        369      64  Instituto Costarricense de Electricidad y
 28573        1343       2311     258  Claro NXT Telecomunicacoes Ltda, BR
  3816        1314        768     202  COLOMBIA TELECOMUNICACIONES S.A. ESP, CO
  6503        1124        314     478  Axtel, S.A.B. de C.V., MX
  6147        1100        369      22  Telefonica del Peru S.A.A., PE
 26615        1084       2503      53  TIM SA, BR
 22884        1064         97     369  TOTAL PLAY TELECOMUNICACIONES SA DE CV, M

Complete listing at https://thyme.apnic.net/current/data-ASnet-LACNIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
 24863        1613        389      16  LINKdotNET-AS, EG
 24835        1559        593      29  RAYA-AS, EG
 36992        1382       1520     280  ETISALAT-MISR, EG
 29571        1293         82      76  ORANGE-COTE-IVOIRE, CI
 36903        1249        554      96  MT-MPLS, MA
 36935         938        521      43  Vodafone-, EG
  6713         555       1861      35  IAM-AS, MA
 36914         473         82       3  KENET-AS, KE
 24757         425         73       5  EthioNet-AS, ET
 37342         418         32       1  MOVITEL, MZ

Complete listing at https://thyme.apnic.net/current/data-ASnet-AFRINIC

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

   ASN  No of nets  /20 equiv  MaxAgg  Description
  8151       11868       3305     502  UNINET, MX
 16509       10265      11564    3642  AMAZON-02, US
  9808        9861       8747      79  CHINAMOBILE-CN China Mobile Communication
 12479        7712       1708     145  UNI2-AS, ES
  7545        5658        776     668  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4935       4192      74  ERX-CERNET-BKB China Education and Resear
 11492        4621        307     549  CABLEONE, US
 39891        4521        271      59  ALJAWWALSTC-AS, SA
 18403        4185        347      23  FPT-AS-AP FPT Telecom Company, VN
  7155        4166        287      88  VIASAT-SP-BACKBONE, US

Complete listing at https://thyme.apnic.net/current/data-ASnet

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

   ASN  No of nets  Net Savings  Description
  9808        9861         9782  CHINAMOBILE-CN China Mobile Communications Grou
 12479        7712         7567  UNI2-AS, ES
 16509       10265         6623  AMAZON-02, US
  7545        5658         4990  TPG-INTERNET-AP TPG Telecom Limited, AU
  4538        4935         4861  ERX-CERNET-BKB China Education and Research Net
 39891        4521         4462  ALJAWWALSTC-AS, SA
 18403        4185         4162  FPT-AS-AP FPT Telecom Company, VN
  7155        4166         4078  VIASAT-SP-BACKBONE, US
 11492        4621         4072  CABLEONE, US
  7552        3962         3941  VIETEL-AS-AP Viettel Group, VN

Complete listing at https://thyme.apnic.net/current/data-CIDRnet

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

    Bad AS  Designation  Net Originated      Transit AS  Transit AS Name
     33123  UNALLOCATED  8.10.69.0/24               174  COGENT-174, US
     12169  UNALLOCATED  8.15.207.0/24            32787  PROLEXIC-TECHNOLOGIES-D
     40493  UNALLOCATED  8.17.26.0/24              3356  LEVEL3, US
     46639  UNALLOCATED  8.17.66.0/24               701  UUNET, US
     53775  UNALLOCATED  8.20.88.0/24              7029  WINDSTREAM, US
    393266  UNALLOCATED  8.23.52.0/24             46887  CROWNCASTLE-AS46887, US
    396894  UNALLOCATED  8.28.201.0/24            46887  CROWNCASTLE-AS46887, US
    394936  UNALLOCATED  8.33.224.0/24            22442  HOU-PHONOSCOPE, US
     54338  UNALLOCATED  8.33.241.0/24             3356  LEVEL3, US
     46639  UNALLOCATED  8.38.73.0/24              3356  LEVEL3, US

Complete listing at https://thyme.apnic.net/current/data-badAS

Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------

Prefix                Origin AS  Description
192.88.99.0/24             6939  HURRICANE, US

Complete listing at https://thyme.apnic.net/current/data-spar

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

Unassigned Network     ASN Information  AS Name
14.192.20.0/22       Origin:     26658  HENGTONG-IDC-LLC, US
14.192.20.0/22      Transit:      6939  HURRICANE, US
23.140.216.0/24      Origin:     27176  DATAWAGON, US
23.140.216.0/24     Transit:     20278  NEXEON, US
23.141.0.0/24        Origin:    395350  RESERVED, ZZ
23.141.0.0/24       Transit:     11426  TWC-11426-CAROLINAS, US
23.152.48.0/24       Origin:     46167  RESERVED, ZZ
23.152.48.0/24      Transit:      7018  ATT-INTERNET4, US
23.170.224.0/24      Origin:     30168  RESERVED, ZZ
23.170.224.0/24     Transit:    397095  SETSONLLC, US

Complete listing at https://thyme.apnic.net/current/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        /8:16       /9:16      /10:37      /11:92      /12:294     
/13:571     /14:1162    /15:2058    /16:13206   /17:8269    /18:13741   
/19:24700   /20:44349   /21:51966   /22:111603  /23:100148  /24:581558  
/25:722     /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
 12479        6803        7712  UNI2-AS, ES
  8151        5937       11868  UNINET, MX
 11492        3532        4621  CABLEONE, US
  6327        3392        3595  SHAW, CA
 39891        3361        4521  ALJAWWALSTC-AS, SA
  7155        3111        4166  VIASAT-SP-BACKBONE, US
 22773        2558        3421  ASN-CXA-ALL-CCI-22773-RDC, US
 16509        2158       10265  AMAZON-02, US
 30036        2156        2496  MEDIACOM-ENTERPRISE-BUSINESS, US
 10620        2152        3523  Telmex Colombia S.A., CO

Complete listing at https://thyme.apnic.net/current/data-sXXas-nos

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

   1:2311      2:1549      3:388       4:6         5:4373      6:149    
   7:6         8:1520      9:1        11:172      12:1437     13:368    
  14:2370     15:326      16:218      17:368      18:786      20:385    
  21:4        22:188      23:6918     24:2697     25:2        27:2567   
  29:19       31:2603     32:47       34:65       35:136      36:2349   
  37:4447     38:8121     39:912      40:147      41:4037     42:1990   
  43:2395     44:330      45:17402    46:4564     47:298      49:1980   
  50:1858     51:580      52:1576     54:318      55:927      56:8      
  57:214      58:2221     59:1251     60:1051     61:2664     62:2761   
  63:1862     64:5456     65:2275     66:4637     67:3013     68:1300   
  69:4022     70:1159     71:559      72:2862     74:2605     75:1559   
  76:617      77:2486     78:1867     79:1781     80:2197     81:2022   
  82:1656     83:1365     84:1724     85:3190     86:941      87:2298   
  88:1250     89:4196     90:701      91:8189     92:2350     93:2720   
  94:3744     95:4214     96:1280     97:317      98:1033     99:739    
 100:73      101:1171    102:3295    103:32249   104:4787    105:695    
 106:1010    107:2499    108:1158    109:4051    110:2126    111:3217   
 112:2061    113:1821    114:1819    115:2040    116:1964    117:2643   
 118:2789    119:1963    120:1823    121:1357    122:2706    123:2279   
 124:1627    125:2861    126:32      128:1403    129:939     130:1183   
 131:1866    132:815     133:417     134:1712    135:319     136:1126   
 137:1095    138:2856    139:1527    140:1417    141:1383    142:1675   
 143:1619    144:1025    145:360     146:2103    147:1991    148:2533   
 149:2786    150:1029    151:1343    152:2231    153:522     154:6482   
 155:1434    156:2333    157:1901    158:1172    159:2434    160:2849   
 161:1707    162:3525    163:1714    164:1684    165:2127    166:1256   
 167:1828    168:4070    169:812     170:4924    171:1045    172:3905   
 173:3074    174:898     175:1234    176:3461    177:4628    178:3642   
 179:2209    180:2424    181:3797    182:3325    183:1982    184:2257   
 185:20920   186:4947    187:4337    188:4073    189:4124    190:9460   
 191:1521    192:11059   193:9174    194:7485    195:5316    196:3211   
 197:2559    198:6052    199:8018    200:8138    201:6307    202:10531  
 203:10328   204:4573    205:3706    206:4494    207:3611    208:4168   
 209:5046    210:4725    211:2632    212:4371    213:3626    214:1068   
 215:49      216:6735    217:2934    218:1398    219:600     220:2023   
 221:1037    222:864     223:2248   

End of report


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