[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Mar 1 18:03:37 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 02 Mar, 2019
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 738919
Prefixes after maximum aggregation (per Origin AS): 285184
Deaggregation factor: 2.59
Unique aggregates announced (without unneeded subnets): 355932
Total ASes present in the Internet Routing Table: 63421
Prefixes per ASN: 11.65
Origin-only ASes present in the Internet Routing Table: 54634
Origin ASes announcing only one prefix: 23613
Transit ASes present in the Internet Routing Table: 8787
Transit-only ASes present in the Internet Routing Table: 273
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 32
Max AS path prepend of ASN ( 16327) 25
Prefixes from unregistered ASNs in the Routing Table: 28
Number of instances of unregistered ASNs: 31
Number of 32-bit ASNs allocated by the RIRs: 25985
Number of 32-bit ASNs visible in the Routing Table: 21159
Prefixes from 32-bit ASNs in the Routing Table: 92373
Number of bogon 32-bit ASNs visible in the Routing Table: 26
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 250
Number of addresses announced to Internet: 2843232227
Equivalent to 169 /8s, 120 /16s and 71 /24s
Percentage of available address space announced: 76.8
Percentage of allocated address space announced: 76.8
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: 247641
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 200962
Total APNIC prefixes after maximum aggregation: 57781
APNIC Deaggregation factor: 3.48
Prefixes being announced from the APNIC address blocks: 197911
Unique aggregates announced from the APNIC address blocks: 81748
APNIC Region origin ASes present in the Internet Routing Table: 9492
APNIC Prefixes per ASN: 20.85
APNIC Region origin ASes announcing only one prefix: 2667
APNIC Region transit ASes present in the Internet Routing Table: 1411
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: 4489
Number of APNIC addresses announced to Internet: 769995650
Equivalent to 45 /8s, 229 /16s and 51 /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: 218584
Total ARIN prefixes after maximum aggregation: 103553
ARIN Deaggregation factor: 2.11
Prefixes being announced from the ARIN address blocks: 217591
Unique aggregates announced from the ARIN address blocks: 104294
ARIN Region origin ASes present in the Internet Routing Table: 18393
ARIN Prefixes per ASN: 11.83
ARIN Region origin ASes announcing only one prefix: 6848
ARIN Region transit ASes present in the Internet Routing Table: 1856
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: 2592
Number of ARIN addresses announced to Internet: 1079214496
Equivalent to 64 /8s, 83 /16s and 129 /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: 203010
Total RIPE prefixes after maximum aggregation: 96936
RIPE Deaggregation factor: 2.09
Prefixes being announced from the RIPE address blocks: 199408
Unique aggregates announced from the RIPE address blocks: 118435
RIPE Region origin ASes present in the Internet Routing Table: 25858
RIPE Prefixes per ASN: 7.71
RIPE Region origin ASes announcing only one prefix: 11480
RIPE Region transit ASes present in the Internet Routing Table: 3630
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: 7871
Number of RIPE addresses announced to Internet: 717032640
Equivalent to 42 /8s, 189 /16s and 12 /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: 95662
Total LACNIC prefixes after maximum aggregation: 22643
LACNIC Deaggregation factor: 4.22
Prefixes being announced from the LACNIC address blocks: 97031
Unique aggregates announced from the LACNIC address blocks: 42029
LACNIC Region origin ASes present in the Internet Routing Table: 8133
LACNIC Prefixes per ASN: 11.93
LACNIC Region origin ASes announcing only one prefix: 2188
LACNIC Region transit ASes present in the Internet Routing Table: 1529
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 32
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 5681
Number of LACNIC addresses announced to Internet: 173345536
Equivalent to 10 /8s, 85 /16s and 11 /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: 20672
Total AfriNIC prefixes after maximum aggregation: 4249
AfriNIC Deaggregation factor: 4.87
Prefixes being announced from the AfriNIC address blocks: 26728
Unique aggregates announced from the AfriNIC address blocks: 9203
AfriNIC Region origin ASes present in the Internet Routing Table: 1253
AfriNIC Prefixes per ASN: 21.33
AfriNIC Region origin ASes announcing only one prefix: 430
AfriNIC Region transit ASes present in the Internet Routing Table: 252
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: 526
Number of AfriNIC addresses announced to Internet: 103380224
Equivalent to 6 /8s, 41 /16s and 117 /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 4662 542 545 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4656 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3096 1241 50 VIETEL-AS-AP Viettel Group, VN
45899 3044 1737 111 VNPT-AS-VN VNPT Corp, VN
4766 2813 11125 769 KIXS-AS-KR Korea Telecom, KR
9829 2752 1496 552 BSNL-NIB National Internet Backbone, IN
9808 2429 8699 26 CMNET-GD Guangdong Mobile Communication
9394 2345 4906 29 CTTNET China TieTong Telecommunications
4755 2146 422 180 TATACOMM-AS TATA Communications formerl
17974 2009 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 3611 1326 93 SHAW - Shaw Communications Inc., CA
11492 3524 228 608 CABLEONE - CABLE ONE, INC., US
22773 3306 2977 165 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
16509 2501 5370 1060 AMAZON-02 - Amazon.com, Inc., US
16625 2282 1268 1750 AKAMAI-AS - Akamai Technologies, Inc.,
20115 2147 2739 544 CHARTER-20115 - Charter Communications,
18566 2123 405 108 MEGAPATH5-US - MegaPath Corporation, US
30036 2115 351 192 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
5650 2091 3074 1462 FRONTIER-FRTR - Frontier Communications
209 2081 5094 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 5371 1626 137 UNI2-AS, ES
39891 3778 203 20 ALJAWWALSTC-AS, SA
8551 3035 378 44 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 2634 545 1911 AKAMAI-ASN1, US
12389 2226 2221 637 ROSTELECOM-AS, RU
34984 2061 341 537 TELLCOM-AS, TR
9121 1681 1692 18 TTNET, TR
13188 1604 100 46 TRIOLAN, UA
9009 1343 145 746 M247, GB
8402 1305 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 5587 3331 591 Uninet S.A. de C.V., MX
10620 2749 412 1054 Telmex Colombia S.A., CO
11830 2702 384 34 Instituto Costarricense de Electricidad
6503 1507 433 54 Axtel, S.A.B. de C.V., MX
7303 1430 961 231 Telecom Argentina S.A., AR
28573 1301 2246 186 CLARO S.A., BR
6147 1270 377 28 Telefonica del Peru S.A.A., PE
3816 1022 506 114 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11172 931 144 66 Alestra, S. de R.L. de C.V., MX
13999 929 517 243 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 1202 393 21 LINKdotNET-AS, EG
37611 929 107 9 Afrihost, ZA
24835 848 636 22 RAYA-AS, EG
36903 827 416 125 MT-MPLS, MA
36992 811 1534 59 ETISALAT-MISR, EG
8452 689 1731 20 TE-AS TE-AS, EG
29571 484 70 13 ORANGE-COTE-IVOIRE, CI
37492 470 470 57 ORANGE-, TN
15399 429 45 11 WANANCHI-, KE
37342 420 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 5587 3331 591 Uninet S.A. de C.V., MX
12479 5371 1626 137 UNI2-AS, ES
7545 4662 542 545 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4656 4192 74 ERX-CERNET-BKB China Education and Rese
39891 3778 203 20 ALJAWWALSTC-AS, SA
6327 3611 1326 93 SHAW - Shaw Communications Inc., CA
11492 3524 228 608 CABLEONE - CABLE ONE, INC., US
22773 3306 2977 165 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
7552 3096 1241 50 VIETEL-AS-AP Viettel Group, VN
45899 3044 1737 111 VNPT-AS-VN VNPT Corp, 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 5371 5234 UNI2-AS, ES
4538 4656 4582 ERX-CERNET-BKB China Education and Research Net
7545 4662 4117 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 3778 3758 ALJAWWALSTC-AS, SA
6327 3611 3518 SHAW - Shaw Communications Inc., CA
22773 3306 3141 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
7552 3096 3046 VIETEL-AS-AP Viettel Group, VN
8551 3035 2991 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
45899 3044 2933 VNPT-AS-VN VNPT Corp, VN
11492 3524 2916 CABLEONE - CABLE ONE, INC., US
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
1358592 UNALLOCATED 103.134.14.0/23 63956 COLO-AS-AP Colocation Australi
1358592 UNALLOCATED 103.134.15.0/24 63956 COLO-AS-AP Colocation Australi
65549 DOCUMENT 117.239.163.0/24 65544 UNKNOWN
224413 UNALLOCATED 131.221.136.0/24 264413 Conecta Telecom Ltda, BR
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
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
41.220.48.0/20 36900 -Reserved AS-, ZZ
43.255.80.0/24 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 /11:100 /12:291
/13:567 /14:1134 /15:1907 /16:13363 /17:7914 /18:13889
/19:25651 /20:39785 /21:46161 /22:92355 /23:75415 /24:417393
/25:956 /26:842 /27:892 /28:27 /29:7 /30:15
/31:0 /32:197
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
12479 4251 5371 UNI2-AS, ES
6327 3383 3611 SHAW - Shaw Communications Inc., CA
39891 2946 3778 ALJAWWALSTC-AS, SA
11492 2771 3524 CABLEONE - CABLE ONE, INC., US
22773 2546 3306 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
8551 2490 3035 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
11830 2047 2702 Instituto Costarricense de Electricidad y Telec
18566 2018 2123 MEGAPATH5-US - MegaPath Corporation, US
30036 1862 2115 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
5650 1761 2091 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)
----------------------------------------------
1:1607 2:890 4:22 5:2778 6:45 7:1
8:1179 12:1858 13:313 14:1914 15:39 16:4
17:226 18:58 20:49 23:2577 24:2522 25:2
27:2544 31:2071 32:94 35:36 36:834 37:3029
38:1692 39:295 40:121 41:3158 42:745 43:2003
44:144 45:6815 46:3228 47:250 49:1365 50:1095
51:322 52:1025 54:289 55:1 56:6 57:40
58:1708 59:1073 60:501 61:2058 62:1988 63:1800
64:4994 65:2189 66:4824 67:2701 68:1165 69:3545
70:1326 71:601 72:2383 74:2759 75:516 76:546
77:1710 78:1760 79:2319 80:1686 81:1448 82:1128
83:865 84:1098 85:2205 86:547 87:1549 88:1027
89:2429 90:217 91:6579 92:1273 93:2480 94:2521
95:3230 96:918 97:346 98:945 99:206 100:88
101:1153 102:422 103:20142 104:3508 105:248 106:885
107:1755 108:700 109:3482 110:1631 111:1876 112:1410
113:1406 114:1135 115:1719 116:1706 117:1873 118:2144
119:1624 120:1019 121:1032 122:2284 123:1643 124:1455
125:1962 128:1251 129:831 130:526 131:1627 132:731
133:218 134:1051 135:242 136:556 137:711 138:2018
139:846 140:575 141:840 142:795 143:1045 144:838
145:510 146:1262 147:792 148:1692 149:797 150:780
151:1010 152:1017 153:323 154:2618 155:867 156:1738
157:923 158:669 159:1924 160:1513 161:917 162:2674
163:792 164:1131 165:1577 166:428 167:1395 168:3276
169:870 170:4013 171:562 172:1104 173:2185 174:1017
175:896 176:2315 177:3994 178:2540 179:1334 180:2100
181:2406 182:2698 183:1068 184:1168 185:14814 186:3767
187:2424 188:2908 189:1967 190:8357 191:1407 192:10047
193:6588 194:5384 195:4055 196:2979 197:1640 198:5798
199:5979 200:7196 201:5068 202:10186 203:10197 204:4613
205:2972 206:3239 207:3283 208:3974 209:4232 210:3930
211:1991 212:3062 213:2903 214:1086 215:54 216:5968
217:2210 218:920 219:581 220:1869 221:966 222:998
223:1434
End of report
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