[SANOG] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri Feb 23 18:03:10 UTC 2018


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

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

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

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

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

Routing Table Report   04:00 +10GMT Sat 24 Feb, 2018

Report Website:     http://thyme.rand.apnic.net
Detailed Analysis:  http://thyme.rand.apnic.net/current/

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

BGP routing table entries examined:                              686347
    Prefixes after maximum aggregation (per Origin AS):          266472
    Deaggregation factor:                                          2.58
    Unique aggregates announced (without unneeded subnets):      331010
Total ASes present in the Internet Routing Table:                 59912
    Prefixes per ASN:                                             11.46
Origin-only ASes present in the Internet Routing Table:           51754
Origin ASes announcing only one prefix:                           22732
Transit ASes present in the Internet Routing Table:                8158
Transit-only ASes present in the Internet Routing Table:            251
Average AS path length visible in the Internet Routing Table:       4.3
    Max AS path length visible:                                      35
    Max AS path prepend of ASN (262865)                              25
Prefixes from unregistered ASNs in the Routing Table:                57
    Number of instances of unregistered ASNs:                        57
Number of 32-bit ASNs allocated by the RIRs:                      21595
Number of 32-bit ASNs visible in the Routing Table:               17346
Prefixes from 32-bit ASNs in the Routing Table:                   72025
Number of bogon 32-bit ASNs visible in the Routing Table:            11
Special use prefixes present in the Routing Table:                    1
Prefixes being announced from unallocated address space:            336
Number of addresses announced to Internet:                   2854396258
    Equivalent to 170 /8s, 34 /16s and 161 /24s
    Percentage of available address space announced:               77.1
    Percentage of allocated address space announced:               77.1
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.8
Total number of prefixes smaller than registry allocations:      227261

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

Prefixes being announced by APNIC Region ASes:                   189162
    Total APNIC prefixes after maximum aggregation:               54011
    APNIC Deaggregation factor:                                    3.50
Prefixes being announced from the APNIC address blocks:          188124
    Unique aggregates announced from the APNIC address blocks:    77606
APNIC Region origin ASes present in the Internet Routing Table:    8664
    APNIC Prefixes per ASN:                                       21.71
APNIC Region origin ASes announcing only one prefix:               2458
APNIC Region transit ASes present in the Internet Routing Table:   1272
Average APNIC Region AS path length visible:                        4.3
    Max APNIC Region AS path length visible:                         27
Number of APNIC region 32-bit ASNs visible in the Routing Table:   3573
Number of APNIC addresses announced to Internet:              767961378
    Equivalent to 45 /8s, 198 /16s and 41 /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, 131072-137529
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:                    204886
    Total ARIN prefixes after maximum aggregation:                98276
    ARIN Deaggregation factor:                                     2.08
Prefixes being announced from the ARIN address blocks:           205810
    Unique aggregates announced from the ARIN address blocks:     97004
ARIN Region origin ASes present in the Internet Routing Table:    18098
    ARIN Prefixes per ASN:                                        11.37
ARIN Region origin ASes announcing only one prefix:                6699
ARIN Region transit ASes present in the Internet Routing Table:    1797
Average ARIN Region AS path length visible:                         3.8
    Max ARIN Region AS path length visible:                          24
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2314
Number of ARIN addresses announced to Internet:              1104112928
    Equivalent to 65 /8s, 207 /16s and 109 /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, 393216-397212
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,
                        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:                    185727
    Total RIPE prefixes after maximum aggregation:                90672
    RIPE Deaggregation factor:                                     2.05
Prefixes being announced from the RIPE address blocks:           181965
    Unique aggregates announced from the RIPE address blocks:    108868
RIPE Region origin ASes present in the Internet Routing Table:    24920
    RIPE Prefixes per ASN:                                         7.30
RIPE Region origin ASes announcing only one prefix:               11340
RIPE Region transit ASes present in the Internet Routing Table:    3490
Average RIPE Region AS path length visible:                         4.4
    Max RIPE Region AS path length visible:                          28
Number of RIPE region 32-bit ASNs visible in the Routing Table:    6695
Number of RIPE addresses announced to Internet:               714129024
    Equivalent to 42 /8s, 144 /16s and 190 /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
                       196608-207259
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:                   88237
    Total LACNIC prefixes after maximum aggregation:              19490
    LACNIC Deaggregation factor:                                   4.53
Prefixes being announced from the LACNIC address blocks:          89586
    Unique aggregates announced from the LACNIC address blocks:   39876
LACNIC Region origin ASes present in the Internet Routing Table:   6838
    LACNIC Prefixes per ASN:                                      13.10
LACNIC Region origin ASes announcing only one prefix:              1870
LACNIC Region transit ASes present in the Internet Routing Table:  1265
Average LACNIC Region AS path length visible:                       5.1
    Max LACNIC Region AS path length visible:                        35
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  4374
Number of LACNIC addresses announced to Internet:             171976096
    Equivalent to 10 /8s, 64 /16s and 37 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-268700 + 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:                  18276
    Total AfriNIC prefixes after maximum aggregation:              3978
    AfriNIC Deaggregation factor:                                  4.59
Prefixes being announced from the AfriNIC address blocks:         20526
    Unique aggregates announced from the AfriNIC address blocks:   7384
AfriNIC Region origin ASes present in the Internet Routing Table:  1116
    AfriNIC Prefixes per ASN:                                     18.39
AfriNIC Region origin ASes announcing only one prefix:              364
AfriNIC Region transit ASes present in the Internet Routing Table:  225
Average AfriNIC Region AS path length visible:                      4.7
    Max AfriNIC Region AS path length visible:                       21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  390
Number of AfriNIC addresses announced to Internet:             95808768
    Equivalent to 5 /8s, 181 /16s and 237 /24s
AfriNIC AS Blocks      36864-37887, 327680-328703 & 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
  4538         5436       4195      92  ERX-CERNET-BKB China Education and Rese
  7545         3794        407     414  TPG-INTERNET-AP TPG Telecom Limited, AU
  4766         2859      11132     770  KIXS-AS-KR Korea Telecom, KR
  9829         2802       1499     540  BSNL-NIB National Internet Backbone, IN
 17974         2708        934      80  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  7552         2633       1161      59  VIETEL-AS-AP Viettel Group, VN
  9394         2629       4923      28  CTTNET China TieTong Telecommunications
 45899         2586       1558     154  VNPT-AS-VN VNPT Corp, VN
  9808         2181       8699      32  CMNET-GD Guangdong Mobile Communication
  4755         2083        417     215  TATACOMM-AS TATA Communications formerl

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

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

   ASN   No of nets  /20 equiv  MaxAgg  Description
  6327         3363       1323      86  SHAW - Shaw Communications Inc., CA
 22773         3272       2987     148  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 18566         2166        405     108  MEGAPATH5-US - MegaPath Corporation, US
 20115         2089       2411     433  CHARTER-NET-HKY-NC - Charter Communicat
 16509         2034       4277     595  AMAZON-02 - Amazon.com, Inc., US
   209         1938       5062     626  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 30036         1922        337     199  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
  6389         1862       3671      36  BELLSOUTH-NET-BLK - BellSouth.net Inc.,
 11492         1729        227     579  CABLEONE - CABLE ONE, INC., US
  7018         1683      20179    1248  ATT-INTERNET4 - AT&T Services, Inc., US

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

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

   ASN   No of nets  /20 equiv  MaxAgg  Description
 39891         3520        187      21  ALJAWWALSTC-AS, SA
 20940         2843        837    2059  AKAMAI-ASN1, US
 12479         2780       1254     671  UNI2-AS, ES
  8551         2099        378      43  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389         2028       1862     704  ROSTELECOM-AS, RU
 34984         1992        332     474  TELLCOM-AS, TR
  9121         1987       1692      19  TTNET, TR
 13188         1606        100      46  TRIOLAN, UA
  6849         1241        355      21  UKRTELNET, UA
  8402         1239        544      14  CORBINA-AS OJSC "Vimpelcom", RU

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

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

   ASN   No of nets  /20 equiv  MaxAgg  Description
  8151         4163       3389     588  Uninet S.A. de C.V., MX
 10620         3599        542     238  Telmex Colombia S.A., CO
 11830         2643        370      66  Instituto Costarricense de Electricidad
  6503         1628        437      53  Axtel, S.A.B. de C.V., MX
  7303         1507       1026     191  Telecom Argentina S.A., AR
  3816         1018        511     116  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147         1015        377      27  Telefonica del Peru S.A.A., PE
 28573         1011       2244     187  CLARO S.A., BR
 11172          923        126      86  Alestra, S. de R.L. de C.V., MX
 18881          907       1072      29  TELEFÔNICA BRASIL S.A, BR

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

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

   ASN   No of nets  /20 equiv  MaxAgg  Description
 24863         1182        398      49  LINKdotNET-AS, EG
 37611          803         91       8  Afrihost, ZA
 36903          739        371     135  MT-MPLS, MA
 36992          671       1380      36  ETISALAT-MISR, EG
  8452          596       1730      18  TE-AS TE-AS, EG
 24835          522        850      15  RAYA-AS, EG
 29571          467         68      12  ORANGE-COTE-IVOIRE, CI
 37492          454        376      80  ORANGE-, TN
 15399          362         35       7  WANANCHI-, KE
 37342          360         32       1  MOVITEL, MZ

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

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

   ASN   No of nets  /20 equiv  MaxAgg  Description
  4538         5436       4195      92  ERX-CERNET-BKB China Education and Rese
  8151         4163       3389     588  Uninet S.A. de C.V., MX
  7545         3794        407     414  TPG-INTERNET-AP TPG Telecom Limited, AU
 10620         3599        542     238  Telmex Colombia S.A., CO
 39891         3520        187      21  ALJAWWALSTC-AS, SA
  6327         3363       1323      86  SHAW - Shaw Communications Inc., CA
 22773         3272       2987     148  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  4766         2859      11132     770  KIXS-AS-KR Korea Telecom, KR
 20940         2843        837    2059  AKAMAI-ASN1, US
  9829         2802       1499     540  BSNL-NIB National Internet Backbone, IN

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

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings  Description
  8151       4163         3575   Uninet S.A. de C.V., MX
 39891       3520         3499   ALJAWWALSTC-AS, SA
  7545       3794         3380   TPG-INTERNET-AP TPG Telecom Limited, AU
 10620       3599         3361   Telmex Colombia S.A., CO
  6327       3363         3277   SHAW - Shaw Communications Inc., CA
 22773       3272         3124   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 17974       2708         2628   TELKOMNET-AS2-AP PT Telekomunikasi Indonesia, I
  9394       2629         2601   CTTNET China TieTong Telecommunications Corpora
 11830       2643         2577   Instituto Costarricense de Electricidad y Telec
  7552       2633         2574   VIETEL-AS-AP Viettel Group, VN

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

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

Bad AS    Designation  Network              Transit AS  Description
  65456   PRIVATE      31.171.126.0/23     199311       AZRT-LX Local Internet Exchang
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW
 419333   UNALLOCATED  84.17.91.0/24        41933       IPRAGAZ-AS Istanbul/ TURKEY, T
  65024   PRIVATE      87.103.234.0/24      39407       CHITATELECOM-AS, RU
  65000   PRIVATE      95.179.2.0/24        65001       -Private Use AS-, ZZ
  65000   PRIVATE      95.179.3.0/24        65001       -Private Use AS-, ZZ
  65000   PRIVATE      95.179.69.0/24       65001       -Private Use AS-, ZZ
  65000   PRIVATE      95.179.70.0/24       65001       -Private Use AS-, ZZ
  65000   PRIVATE      95.179.92.0/24       65001       -Private Use AS-, ZZ

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

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

Prefix             Origin AS  Description
100.66.224.0/19        209     CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati

Complete listing at http://thyme.rand.apnic.net/current/data-dsua

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

Network            Origin AS  Description
14.128.14.0/23       10247    NETLINE, ZA
14.192.50.0/23       10247    NETLINE, ZA
14.192.58.0/23       10247    NETLINE, ZA
27.100.7.0/24        56096    UNKNOWN
36.255.250.0/23      10247    NETLINE, ZA
37.44.224.0/20       48666    AS-MAROSNET Moscow, Russia, RU
41.78.180.0/23       37265    -Reserved AS-, ZZ
43.228.144.0/22       9829    BSNL-NIB National Internet Backbone, IN
43.251.20.0/22        9381    WTT-AS-AP WTT HK Limited, HK
43.251.84.0/22      133676    PNPL-AS Precious netcom pvt ltd, IN

Complete listing at http://thyme.rand.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        /8:14       /9:11      /10:37      /11:100     /12:290     
/13:563     /14:1094    /15:1900    /16:13325   /17:7788    /18:13608   
/19:25221   /20:39069   /21:45132   /22:84561   /23:68585   /24:382819  
/25:842     /26:599     /27:654     /28:35      /29:20      /30:18      
/31:4       /32:58      

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

   ASN   No of nets  Total ann.  Description
  6327     3154          3363    SHAW - Shaw Communications Inc., CA
 39891     2946          3520    ALJAWWALSTC-AS, SA
 22773     2530          3272    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 18566     2060          2166    MEGAPATH5-US - MegaPath Corporation, US
 11830     1989          2643    Instituto Costarricense de Electricidad y Telec
 30036     1677          1922    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 12479     1644          2780    UNI2-AS, ES
 10620     1592          3599    Telmex Colombia S.A., CO
  8551     1562          2099    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
 11492     1515          1729    CABLEONE - CABLE ONE, INC., US

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

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

   1:1568      2:843       4:18        5:2652      6:59        7:1      
   8:1106      9:1        12:1868     13:204      14:1755     15:26     
  16:3        17:186      18:68       20:49       21:3        23:2541   
  24:2136     25:2        27:2346     31:1937     32:88       35:24     
  36:492      37:2629     38:1463     39:245      40:103      41:2997   
  42:538      43:1953     44:97       45:3727     46:3018     47:200    
  49:1362     50:1041     51:48       52:976      54:360      55:6      
  56:7        57:42       58:1596     59:1038     60:387      61:2062   
  62:1801     63:1803     64:4721     65:2226     66:4534     67:2342   
  68:1169     69:3189     70:1171     71:559      72:2099     74:2671   
  75:398      76:425      77:1520     78:1685     79:1845     80:1487   
  81:1414     82:1082     83:794      84:1006     85:2020     86:556    
  87:1258     88:919      89:2295     90:186      91:6283     92:1178   
  93:2369     94:2410     95:2735     96:650      97:357      98:928    
  99:120     100:79      101:1474    102:26      103:17188   104:3275   
 105:220     106:542     107:1803    108:708     109:2697    110:1572   
 111:1773    112:1312    113:1379    114:1129    115:1636    116:1642   
 117:1699    118:2202    119:1675    120:968     121:1059    122:2463   
 123:1802    124:1458    125:1855    128:987     129:602     130:434    
 131:1604    132:615     133:194     134:997     135:226     136:439    
 137:477     138:1961    139:568     140:402     141:684     142:779    
 143:989     144:797     145:454     146:1164    147:747     148:1535   
 149:704     150:736     151:987     152:761     153:309     154:1024   
 155:755     156:838     157:772     158:623     159:1617    160:865    
 161:737     162:2548    163:523     164:1021    165:1391    166:396    
 167:1389    168:3095    169:805     170:3657    171:414     172:1038   
 173:1921    174:877     175:753     176:1920    177:3952    178:2423   
 179:1156    180:2240    181:2143    182:2467    183:1131    184:906    
 185:12596   186:3452    187:2318    188:2676    189:1968    190:8118   
 191:1365    192:9789    193:5889    194:4778    195:3981    196:2419   
 197:1418    198:5523    199:5890    200:7320    201:4881    202:10372  
 203:10038   204:4542    205:2870    206:3064    207:3120    208:3989   
 209:3926    210:4039    211:2116    212:2995    213:2623    214:902    
 215:61      216:5850    217:2137    218:899     219:621     220:1726   
 221:996     222:1053    223:1238   

End of report


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