[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Feb 8 18:03:52 UTC 2019
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
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 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 09 Feb, 2019
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 735782
Prefixes after maximum aggregation (per Origin AS): 283896
Deaggregation factor: 2.59
Unique aggregates announced (without unneeded subnets): 354692
Total ASes present in the Internet Routing Table: 63154
Prefixes per ASN: 11.65
Origin-only ASes present in the Internet Routing Table: 54395
Origin ASes announcing only one prefix: 23628
Transit ASes present in the Internet Routing Table: 8759
Transit-only ASes present in the Internet Routing Table: 269
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 31
Max AS path prepend of ASN ( 16327) 25
Prefixes from unregistered ASNs in the Routing Table: 23
Number of instances of unregistered ASNs: 25
Number of 32-bit ASNs allocated by the RIRs: 25701
Number of 32-bit ASNs visible in the Routing Table: 20922
Prefixes from 32-bit ASNs in the Routing Table: 90815
Number of bogon 32-bit ASNs visible in the Routing Table: 18
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 272
Number of addresses announced to Internet: 2840238979
Equivalent to 169 /8s, 74 /16s and 155 /24s
Percentage of available address space announced: 76.7
Percentage of allocated address space announced: 76.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.2
Total number of prefixes smaller than registry allocations: 246466
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 200254
Total APNIC prefixes after maximum aggregation: 57486
APNIC Deaggregation factor: 3.48
Prefixes being announced from the APNIC address blocks: 197290
Unique aggregates announced from the APNIC address blocks: 81759
APNIC Region origin ASes present in the Internet Routing Table: 9439
APNIC Prefixes per ASN: 20.90
APNIC Region origin ASes announcing only one prefix: 2672
APNIC Region transit ASes present in the Internet Routing Table: 1405
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 4441
Number of APNIC addresses announced to Internet: 769736994
Equivalent to 45 /8s, 225 /16s and 65 /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, 131072-139577
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: 217826
Total ARIN prefixes after maximum aggregation: 103457
ARIN Deaggregation factor: 2.11
Prefixes being announced from the ARIN address blocks: 217127
Unique aggregates announced from the ARIN address blocks: 104021
ARIN Region origin ASes present in the Internet Routing Table: 18351
ARIN Prefixes per ASN: 11.83
ARIN Region origin ASes announcing only one prefix: 6829
ARIN Region transit ASes present in the Internet Routing Table: 1860
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: 2573
Number of ARIN addresses announced to Internet: 1077270688
Equivalent to 64 /8s, 53 /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, 393216-399260
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: 202475
Total RIPE prefixes after maximum aggregation: 96393
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 198575
Unique aggregates announced from the RIPE address blocks: 117680
RIPE Region origin ASes present in the Internet Routing Table: 25807
RIPE Prefixes per ASN: 7.69
RIPE Region origin ASes announcing only one prefix: 11507
RIPE Region transit ASes present in the Internet Routing Table: 3628
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: 7813
Number of RIPE addresses announced to Internet: 716757184
Equivalent to 42 /8s, 184 /16s and 216 /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
196608-210331
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: 94825
Total LACNIC prefixes after maximum aggregation: 22319
LACNIC Deaggregation factor: 4.25
Prefixes being announced from the LACNIC address blocks: 96267
Unique aggregates announced from the LACNIC address blocks: 41816
LACNIC Region origin ASes present in the Internet Routing Table: 8029
LACNIC Prefixes per ASN: 11.99
LACNIC Region origin ASes announcing only one prefix: 2194
LACNIC Region transit ASes present in the Internet Routing Table: 1508
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 31
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 5580
Number of LACNIC addresses announced to Internet: 173070848
Equivalent to 10 /8s, 80 /16s and 218 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-270748 + 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: 20378
Total AfriNIC prefixes after maximum aggregation: 4221
AfriNIC Deaggregation factor: 4.83
Prefixes being announced from the AfriNIC address blocks: 26251
Unique aggregates announced from the AfriNIC address blocks: 9173
AfriNIC Region origin ASes present in the Internet Routing Table: 1241
AfriNIC Prefixes per ASN: 21.15
AfriNIC Region origin ASes announcing only one prefix: 426
AfriNIC Region transit ASes present in the Internet Routing Table: 245
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 515
Number of AfriNIC addresses announced to Internet: 102993920
Equivalent to 6 /8s, 35 /16s and 144 /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
7545 4658 540 538 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4653 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3057 1241 49 VIETEL-AS-AP Viettel Group, VN
45899 3006 1725 112 VNPT-AS-VN VNPT Corp, VN
4766 2811 11127 767 KIXS-AS-KR Korea Telecom, KR
9829 2751 1496 551 BSNL-NIB National Internet Backbone, IN
9808 2437 8699 26 CMNET-GD Guangdong Mobile Communication
9394 2394 4906 29 CTTNET China TieTong Telecommunications
4755 2140 422 180 TATACOMM-AS TATA Communications formerl
17974 2004 968 50 TELKOMNET-AS2-AP PT Telekomunikasi Indo
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 3575 1326 92 SHAW - Shaw Communications Inc., CA
11492 3498 226 588 CABLEONE - CABLE ONE, INC., US
22773 3310 2979 174 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
16509 2607 5392 1017 AMAZON-02 - Amazon.com, Inc., US
16625 2304 1263 1738 AKAMAI-AS - Akamai Technologies, Inc.,
20115 2151 2743 535 CHARTER-20115 - Charter Communications,
18566 2132 405 108 MEGAPATH5-US - MegaPath Corporation, US
30036 2094 348 248 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
5650 2086 3074 1462 FRONTIER-FRTR - Frontier Communications
209 2074 5079 583 CENTURYLINK-US-LEGACY-QWEST - CenturyLi
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
12479 5302 1628 138 UNI2-AS, ES
39891 3778 203 20 ALJAWWALSTC-AS, SA
8551 3269 378 43 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 2619 551 1908 AKAMAI-ASN1, US
12389 2230 2221 633 ROSTELECOM-AS, RU
34984 2059 339 531 TELLCOM-AS, TR
9121 1727 1692 18 TTNET, TR
13188 1604 100 46 TRIOLAN, UA
9009 1351 147 760 M247, GB
8402 1312 545 15 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 5564 3325 588 Uninet S.A. de C.V., MX
10620 2886 437 1014 Telmex Colombia S.A., CO
11830 2694 386 39 Instituto Costarricense de Electricidad
6503 1564 433 54 Axtel, S.A.B. de C.V., MX
7303 1406 932 231 Telecom Argentina S.A., AR
6147 1284 377 29 Telefonica del Peru S.A.A., PE
28573 1243 2244 184 CLARO S.A., BR
3816 1029 511 115 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11172 931 143 66 Alestra, S. de R.L. de C.V., MX
13999 916 528 244 Mega Cable, S.A. de C.V., MX
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 1212 393 21 LINKdotNET-AS, EG
37611 923 107 9 Afrihost, ZA
36903 810 407 147 MT-MPLS, MA
36992 806 1475 48 ETISALAT-MISR, EG
24835 685 636 22 RAYA-AS, EG
8452 642 1731 20 TE-AS TE-AS, EG
29571 487 70 13 ORANGE-COTE-IVOIRE, CI
37492 468 470 57 ORANGE-, TN
15399 427 45 11 WANANCHI-, KE
37342 419 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
8151 5564 3325 588 Uninet S.A. de C.V., MX
12479 5302 1628 138 UNI2-AS, ES
7545 4658 540 538 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4653 4192 74 ERX-CERNET-BKB China Education and Rese
39891 3778 203 20 ALJAWWALSTC-AS, SA
6327 3575 1326 92 SHAW - Shaw Communications Inc., CA
11492 3498 226 588 CABLEONE - CABLE ONE, INC., US
22773 3310 2979 174 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
8551 3269 378 43 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
7552 3057 1241 49 VIETEL-AS-AP Viettel Group, VN
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
12479 5302 5164 UNI2-AS, ES
4538 4653 4579 ERX-CERNET-BKB China Education and Research Net
7545 4658 4120 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 3778 3758 ALJAWWALSTC-AS, SA
6327 3575 3483 SHAW - Shaw Communications Inc., CA
8551 3269 3226 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 3310 3136 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
7552 3057 3008 VIETEL-AS-AP Viettel Group, VN
11492 3498 2910 CABLEONE - CABLE ONE, INC., US
45899 3006 2894 VNPT-AS-VN VNPT Corp, 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
230105 UNALLOCATED 38.110.79.0/24 23015 CMC180-TOR-AS - Cambridge Merc
266842 UNALLOCATED 45.238.156.0/22 265680 HNTELCO S.A, HN
65544 DOCUMENT 117.239.163.0/24 65542 UNKNOWN
64339 UNALLOCATED 143.0.108.0/22 18747 IFX18747 - IFX Corporation, US
64355 UNALLOCATED 156.40.196.0/24 30387 NIH-NET-NCCS - National Instit
64011 UNALLOCATED 166.133.128.0/18 20057 ATT-MOBILITY-LLC-AS20057 - AT&
64011 UNALLOCATED 166.133.192.0/18 20057 ATT-MOBILITY-LLC-AS20057 - AT&
64011 UNALLOCATED 166.184.9.0/24 20057 ATT-MOBILITY-LLC-AS20057 - AT&
64011 UNALLOCATED 166.220.64.0/19 20057 ATT-MOBILITY-LLC-AS20057 - AT&
64011 UNALLOCATED 166.220.96.0/19 20057 ATT-MOBILITY-LLC-AS20057 - AT&
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.1.19/32 7497 CSTNET-AS-AP Computer Network Information Cente
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
27.100.7.0/24 56096 UNKNOWN
27.126.156.0/22 55827 UNKNOWN
27.126.156.0/23 55827 UNKNOWN
27.126.158.0/23 55827 UNKNOWN
41.76.136.0/22 37500 -Reserved AS-, ZZ
41.76.140.0/22 37500 -Reserved AS-, ZZ
41.78.92.0/22 14988 BTC-GATE1, BW
41.78.180.0/23 37265 -Reserved AS-, ZZ
43.255.80.0/24 36351 SOFTLAYER - SoftLayer Technologies Inc., US
43.255.82.0/24 36351 SOFTLAYER - SoftLayer Technologies Inc., US
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 /8:12 /9:10 /10:36 /11:99 /12:291
/13:567 /14:1132 /15:1906 /16:13361 /17:7896 /18:13869
/19:25584 /20:39740 /21:46092 /22:91640 /23:74944 /24:415770
/25:925 /26:820 /27:861 /28:20 /29:6 /30:7
/31:0 /32:194
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
12479 4185 5302 UNI2-AS, ES
6327 3338 3575 SHAW - Shaw Communications Inc., CA
39891 2946 3778 ALJAWWALSTC-AS, SA
11492 2759 3498 CABLEONE - CABLE ONE, INC., US
8551 2725 3269 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2550 3310 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
11830 2037 2694 Instituto Costarricense de Electricidad y Telec
18566 2027 2132 MEGAPATH5-US - MegaPath Corporation, US
30036 1841 2094 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
5650 1758 2086 FRONTIER-FRTR - Frontier Communications of Amer
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1604 2:893 4:22 5:2801 6:47 7:1
8:1191 12:1868 13:313 14:1893 15:37 16:4
17:238 18:59 20:50 23:2602 24:2524 25:2
27:2546 31:2058 32:94 35:36 36:831 37:3026
38:1655 39:294 40:122 41:3125 42:725 43:1990
44:141 45:6574 46:3240 47:248 49:1337 50:1088
51:319 52:1085 54:350 55:1 56:6 57:41
58:1706 59:1056 60:492 61:2057 62:2083 63:1786
64:5074 65:2181 66:4809 67:2695 68:1172 69:3494
70:1153 71:600 72:2292 74:2748 75:420 76:543
77:1698 78:1758 79:2318 80:1636 81:1425 82:1111
83:905 84:1088 85:2150 86:552 87:1563 88:955
89:2433 90:205 91:6580 92:1234 93:2449 94:2505
95:3235 96:915 97:348 98:937 99:174 100:86
101:1225 102:386 103:19955 104:3563 105:249 106:867
107:1802 108:694 109:3668 110:1625 111:1876 112:1392
113:1411 114:1138 115:1726 116:1680 117:1917 118:2192
119:1621 120:1047 121:1029 122:2290 123:1641 124:1433
125:1956 128:1210 129:679 130:522 131:1643 132:715
133:218 134:1048 135:238 136:551 137:705 138:1946
139:836 140:571 141:810 142:801 143:1031 144:892
145:506 146:1248 147:811 148:1713 149:795 150:785
151:1005 152:1003 153:325 154:2554 155:972 156:1661
157:893 158:657 159:1909 160:1508 161:911 162:2672
163:781 164:1136 165:1572 166:438 167:1376 168:3268
169:869 170:3998 171:525 172:1094 173:2163 174:1005
175:885 176:2294 177:3947 178:2568 179:1285 180:2093
181:2430 182:2685 183:1050 184:1157 185:14722 186:3686
187:2412 188:2889 189:2008 190:8289 191:1453 192:10038
193:6552 194:5357 195:4049 196:2978 197:1738 198:5766
199:5988 200:7250 201:5063 202:10112 203:10155 204:4605
205:3008 206:3244 207:3258 208:3959 209:4223 210:3936
211:1984 212:3057 213:2888 214:1087 215:52 216:5955
217:2196 218:920 219:578 220:1846 221:995 222:994
223:1432
End of report
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