[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri May 17 18:02:38 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 18 May, 2019
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 754540
Prefixes after maximum aggregation (per Origin AS): 289575
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 360661
Total ASes present in the Internet Routing Table: 64226
Prefixes per ASN: 11.75
Origin-only ASes present in the Internet Routing Table: 55252
Origin ASes announcing only one prefix: 23799
Transit ASes present in the Internet Routing Table: 8974
Transit-only ASes present in the Internet Routing Table: 266
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 34
Max AS path prepend of ASN ( 8697) 27
Prefixes from unregistered ASNs in the Routing Table: 26
Number of instances of unregistered ASNs: 30
Number of 32-bit ASNs allocated by the RIRs: 27012
Number of 32-bit ASNs visible in the Routing Table: 22035
Prefixes from 32-bit ASNs in the Routing Table: 98302
Number of bogon 32-bit ASNs visible in the Routing Table: 23
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 243
Number of addresses announced to Internet: 2850395904
Equivalent to 169 /8s, 229 /16s and 151 /24s
Percentage of available address space announced: 77.0
Percentage of allocated address space announced: 77.0
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: 252512
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 203617
Total APNIC prefixes after maximum aggregation: 60182
APNIC Deaggregation factor: 3.38
Prefixes being announced from the APNIC address blocks: 199801
Unique aggregates announced from the APNIC address blocks: 82445
APNIC Region origin ASes present in the Internet Routing Table: 9758
APNIC Prefixes per ASN: 20.48
APNIC Region origin ASes announcing only one prefix: 2719
APNIC Region transit ASes present in the Internet Routing Table: 1455
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 4745
Number of APNIC addresses announced to Internet: 773674496
Equivalent to 46 /8s, 29 /16s and 86 /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: 225014
Total ARIN prefixes after maximum aggregation: 104849
ARIN Deaggregation factor: 2.15
Prefixes being announced from the ARIN address blocks: 224054
Unique aggregates announced from the ARIN address blocks: 105452
ARIN Region origin ASes present in the Internet Routing Table: 18470
ARIN Prefixes per ASN: 12.13
ARIN Region origin ASes announcing only one prefix: 6858
ARIN Region transit ASes present in the Internet Routing Table: 1891
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2701
Number of ARIN addresses announced to Internet: 1077818496
Equivalent to 64 /8s, 62 /16s and 52 /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, 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: 207489
Total RIPE prefixes after maximum aggregation: 98322
RIPE Deaggregation factor: 2.11
Prefixes being announced from the RIPE address blocks: 203854
Unique aggregates announced from the RIPE address blocks: 120864
RIPE Region origin ASes present in the Internet Routing Table: 26062
RIPE Prefixes per ASN: 7.82
RIPE Region origin ASes announcing only one prefix: 11568
RIPE Region transit ASes present in the Internet Routing Table: 3719
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 34
Number of RIPE region 32-bit ASNs visible in the Routing Table: 8106
Number of RIPE addresses announced to Internet: 719355520
Equivalent to 42 /8s, 224 /16s and 126 /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: 96989
Total LACNIC prefixes after maximum aggregation: 21912
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 98392
Unique aggregates announced from the LACNIC address blocks: 42564
LACNIC Region origin ASes present in the Internet Routing Table: 8376
LACNIC Prefixes per ASN: 11.75
LACNIC Region origin ASes announcing only one prefix: 2218
LACNIC Region transit ASes present in the Internet Routing Table: 1543
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 5929
Number of LACNIC addresses announced to Internet: 174042368
Equivalent to 10 /8s, 95 /16s and 173 /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: 21404
Total AfriNIC prefixes after maximum aggregation: 4289
AfriNIC Deaggregation factor: 4.99
Prefixes being announced from the AfriNIC address blocks: 28196
Unique aggregates announced from the AfriNIC address blocks: 9119
AfriNIC Region origin ASes present in the Internet Routing Table: 1276
AfriNIC Prefixes per ASN: 22.10
AfriNIC Region origin ASes announcing only one prefix: 436
AfriNIC Region transit ASes present in the Internet Routing Table: 244
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 554
Number of AfriNIC addresses announced to Internet: 105021696
Equivalent to 6 /8s, 66 /16s and 129 /24s
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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
7545 4741 546 555 TPG-INTERNET-AP TPG Telecom Limited, AU
7552 3167 1443 27 VIETEL-AS-AP Viettel Group, VN
45899 3038 1745 112 VNPT-AS-VN VNPT Corp, VN
9808 2846 9043 62 CMNET-GD Guangdong Mobile Communication
9829 2734 1496 551 BSNL-NIB National Internet Backbone, IN
4766 2543 11120 760 KIXS-AS-KR Korea Telecom, KR
9394 2154 4882 26 CTTNET China TieTong Telecommunications
4755 2136 428 182 TATACOMM-AS TATA Communications formerl
9498 2050 427 170 BBIL-AP BHARTI Airtel Ltd., IN
23969 1765 314 16 TOT-NET TOT Public Company Limited, TH
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
7155 4065 280 25 VIASAT-SP-BACKBONE - ViaSat,Inc., US
11492 3654 238 582 CABLEONE - CABLE ONE, INC., US
6327 3634 1325 93 SHAW - Shaw Communications Inc., CA
22773 3401 2974 155 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
16509 2785 6041 1202 AMAZON-02 - Amazon.com, Inc., US
16625 2443 1337 1851 AKAMAI-AS - Akamai Technologies, Inc.,
30036 2169 350 159 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
20115 2150 2758 525 CHARTER-20115 - Charter Communications,
18566 2100 405 108 MEGAPATH5-US - MegaPath Corporation, US
5650 2086 3074 1462 FRONTIER-FRTR - Frontier Communications
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 5432 1629 140 UNI2-AS, ES
39891 3778 203 20 ALJAWWALSTC-AS, SA
8551 3211 378 45 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 2670 524 1924 AKAMAI-ASN1, US
12389 2244 2223 636 ROSTELECOM-AS, RU
34984 2080 343 543 TELLCOM-AS, TR
9121 1668 1692 18 TTNET, TR
13188 1601 100 47 TRIOLAN, UA
9009 1455 151 793 M247, GB
8402 1222 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 5751 3368 573 Uninet S.A. de C.V., MX
10620 3432 535 405 Telmex Colombia S.A., CO
11830 2708 384 34 Instituto Costarricense de Electricidad
3816 1530 579 213 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
7303 1479 1020 258 Telecom Argentina S.A., AR
28573 1390 2236 203 CLARO S.A., BR
6503 1263 433 53 Axtel, S.A.B. de C.V., MX
6147 1200 377 30 Telefonica del Peru S.A.A., PE
13999 983 513 247 Mega Cable, S.A. de C.V., MX
11172 936 143 61 Alestra, S. de R.L. 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 1158 393 21 LINKdotNET-AS, EG
37611 906 107 9 Afrihost, ZA
24835 888 648 21 RAYA-AS, EG
36992 829 1536 69 ETISALAT-MISR, EG
36903 827 416 126 MT-MPLS, MA
8452 685 1731 19 TE-AS TE-AS, EG
29571 512 68 12 ORANGE-COTE-IVOIRE, CI
37492 470 470 57 ORANGE-, TN
15706 421 32 6 Sudatel, SD
23889 414 231 15 MauritiusTelecom, MU
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 5751 3368 573 Uninet S.A. de C.V., MX
12479 5432 1629 140 UNI2-AS, ES
7545 4741 546 555 TPG-INTERNET-AP TPG Telecom Limited, AU
7155 4065 280 25 VIASAT-SP-BACKBONE - ViaSat,Inc., US
39891 3778 203 20 ALJAWWALSTC-AS, SA
11492 3654 238 582 CABLEONE - CABLE ONE, INC., US
6327 3634 1325 93 SHAW - Shaw Communications Inc., CA
10620 3432 535 405 Telmex Colombia S.A., CO
22773 3401 2974 155 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
8551 3211 378 45 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
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 5432 5292 UNI2-AS, ES
7545 4741 4186 TPG-INTERNET-AP TPG Telecom Limited, AU
7155 4065 4040 VIASAT-SP-BACKBONE - ViaSat,Inc., US
39891 3778 3758 ALJAWWALSTC-AS, SA
6327 3634 3541 SHAW - Shaw Communications Inc., CA
22773 3401 3246 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
8551 3211 3166 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7552 3167 3140 VIETEL-AS-AP Viettel Group, VN
11492 3654 3072 CABLEONE - CABLE ONE, INC., US
10620 3432 3027 Telmex Colombia S.A., CO
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
65550 DOCUMENT 81.8.34.0/24 15924 BORUSANTELEKOM-AS, TR
65550 DOCUMENT 81.8.35.0/24 15924 BORUSANTELEKOM-AS, TR
65544 DOCUMENT 103.75.239.0/24 135000 ONS-BD OPEN NETWORK SOLUTIONS
65549 DOCUMENT 117.239.163.0/24 65544 UNKNOWN
64339 UNALLOCATED 143.0.108.0/22 18747 IFX18747 - IFX Corporation, US
65551 DOCUMENT 149.165.246.0/24 19782 INDIANAGIGAPOP - Indiana Unive
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&
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
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
41.220.48.0/20 36900 -Reserved AS-, ZZ
41.242.92.0/24 37643 -Reserved AS-, ZZ
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 /9:11 /10:38 /11:100 /12:295
/13:571 /14:1131 /15:1911 /16:13323 /17:8001 /18:13957
/19:25827 /20:40305 /21:46996 /22:93871 /23:76625 /24:430648
/25:918 /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 4363 5432 UNI2-AS, ES
6327 3409 3634 SHAW - Shaw Communications Inc., CA
7155 3156 4065 VIASAT-SP-BACKBONE - ViaSat,Inc., US
39891 2946 3778 ALJAWWALSTC-AS, SA
11492 2860 3654 CABLEONE - CABLE ONE, INC., US
8551 2665 3211 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2641 3401 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
11830 2053 2708 Instituto Costarricense de Electricidad y Telec
18566 1995 2100 MEGAPATH5-US - MegaPath Corporation, US
30036 1919 2169 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1600 2:1022 3:6 4:21 5:3151 6:47
7:1 8:1308 9:1 12:1801 13:342 14:2014
15:36 16:4 17:262 18:58 20:52 23:2701
24:2505 25:2 27:2459 31:1984 32:100 35:35
36:865 37:3023 38:1737 39:293 40:122 41:3288
42:781 43:2035 44:150 45:7842 46:3292 47:258
49:1363 50:1107 51:322 52:1010 54:281 55:708
56:6 57:45 58:1753 59:1057 60:506 61:2181
62:2148 63:1826 64:4971 65:2203 66:4828 67:2780
68:1162 69:3541 70:1370 71:632 72:2629 74:2740
75:1289 76:557 77:1824 78:1838 79:2288 80:1806
81:1492 82:1128 83:949 84:1132 85:2283 86:540
87:1555 88:1053 89:2640 90:218 91:6564 92:1404
93:2487 94:2497 95:3288 96:946 97:342 98:964
99:757 100:88 101:1160 102:580 103:21225 104:3546
105:253 106:776 107:1765 108:694 109:3751 110:1666
111:2066 112:1507 113:1403 114:1233 115:1708 116:1754
117:1920 118:2091 119:1634 120:1042 121:1043 122:2361
123:1720 124:1492 125:1960 128:1251 129:839 130:531
131:1820 132:806 133:222 134:1095 135:242 136:575
137:768 138:2037 139:887 140:647 141:882 142:801
143:1049 144:878 145:497 146:1275 147:837 148:1681
149:942 150:807 151:1020 152:1064 153:334 154:3180
155:920 156:1641 157:1006 158:654 159:1950 160:1609
161:927 162:2957 163:816 164:1206 165:1593 166:430
167:1407 168:3332 169:869 170:4130 171:578 172:1647
173:2224 174:1045 175:930 176:2323 177:4221 178:2540
179:1397 180:2092 181:2425 182:2692 183:1074 184:2250
185:15132 186:3684 187:2492 188:2922 189:1992 190:8249
191:1547 192:10056 193:6681 194:5437 195:4137 196:3113
197:1790 198:5949 199:5978 200:7131 201:5092 202:10426
203:10138 204:4545 205:3049 206:3238 207:3251 208:3939
209:4243 210:3926 211:2016 212:3096 213:2925 214:1110
215:55 216:5933 217:2226 218:876 219:593 220:1862
221:968 222:983 223:1370
End of report
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