[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Mar 15 18:02:57 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 16 Mar, 2019
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 742746
Prefixes after maximum aggregation (per Origin AS): 284987
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 357165
Total ASes present in the Internet Routing Table: 63650
Prefixes per ASN: 11.67
Origin-only ASes present in the Internet Routing Table: 54847
Origin ASes announcing only one prefix: 23682
Transit ASes present in the Internet Routing Table: 8803
Transit-only ASes present in the Internet Routing Table: 268
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 30
Max AS path prepend of ASN ( 16327) 25
Prefixes from unregistered ASNs in the Routing Table: 28
Number of instances of unregistered ASNs: 32
Number of 32-bit ASNs allocated by the RIRs: 26173
Number of 32-bit ASNs visible in the Routing Table: 21355
Prefixes from 32-bit ASNs in the Routing Table: 93575
Number of bogon 32-bit ASNs visible in the Routing Table: 27
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 266
Number of addresses announced to Internet: 2844073699
Equivalent to 169 /8s, 133 /16s and 30 /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: 249117
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 202186
Total APNIC prefixes after maximum aggregation: 58207
APNIC Deaggregation factor: 3.47
Prefixes being announced from the APNIC address blocks: 198865
Unique aggregates announced from the APNIC address blocks: 82260
APNIC Region origin ASes present in the Internet Routing Table: 9619
APNIC Prefixes per ASN: 20.67
APNIC Region origin ASes announcing only one prefix: 2700
APNIC Region transit ASes present in the Internet Routing Table: 1413
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 4579
Number of APNIC addresses announced to Internet: 769643394
Equivalent to 45 /8s, 223 /16s and 211 /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: 219026
Total ARIN prefixes after maximum aggregation: 103651
ARIN Deaggregation factor: 2.11
Prefixes being announced from the ARIN address blocks: 218231
Unique aggregates announced from the ARIN address blocks: 104548
ARIN Region origin ASes present in the Internet Routing Table: 18424
ARIN Prefixes per ASN: 11.84
ARIN Region origin ASes announcing only one prefix: 6859
ARIN Region transit ASes present in the Internet Routing Table: 1865
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: 2621
Number of ARIN addresses announced to Internet: 1079341216
Equivalent to 64 /8s, 85 /16s and 112 /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: 204462
Total RIPE prefixes after maximum aggregation: 97382
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 200655
Unique aggregates announced from the RIPE address blocks: 118971
RIPE Region origin ASes present in the Internet Routing Table: 25885
RIPE Prefixes per ASN: 7.75
RIPE Region origin ASes announcing only one prefix: 11501
RIPE Region transit ASes present in the Internet Routing Table: 3644
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 7901
Number of RIPE addresses announced to Internet: 717893568
Equivalent to 42 /8s, 202 /16s and 47 /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: 96351
Total LACNIC prefixes after maximum aggregation: 21437
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 97712
Unique aggregates announced from the LACNIC address blocks: 41886
LACNIC Region origin ASes present in the Internet Routing Table: 8174
LACNIC Prefixes per ASN: 11.95
LACNIC Region origin ASes announcing only one prefix: 2189
LACNIC Region transit ASes present in the Internet Routing Table: 1526
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 5721
Number of LACNIC addresses announced to Internet: 173387264
Equivalent to 10 /8s, 85 /16s and 174 /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: 20692
Total AfriNIC prefixes after maximum aggregation: 4288
AfriNIC Deaggregation factor: 4.83
Prefixes being announced from the AfriNIC address blocks: 27017
Unique aggregates announced from the AfriNIC address blocks: 9261
AfriNIC Region origin ASes present in the Internet Routing Table: 1261
AfriNIC Prefixes per ASN: 21.43
AfriNIC Region origin ASes announcing only one prefix: 433
AfriNIC Region transit ASes present in the Internet Routing Table: 251
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: 533
Number of AfriNIC addresses announced to Internet: 103540480
Equivalent to 6 /8s, 43 /16s and 231 /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 4666 542 544 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4658 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3100 1240 49 VIETEL-AS-AP Viettel Group, VN
45899 3037 1737 111 VNPT-AS-VN VNPT Corp, VN
4766 2813 11125 767 KIXS-AS-KR Korea Telecom, KR
9829 2749 1496 550 BSNL-NIB National Internet Backbone, IN
9808 2431 8699 26 CMNET-GD Guangdong Mobile Communication
9394 2335 4906 30 CTTNET China TieTong Telecommunications
4755 2140 422 179 TATACOMM-AS TATA Communications formerl
9498 2019 426 163 BBIL-AP BHARTI Airtel Ltd., IN
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 3616 1326 91 SHAW - Shaw Communications Inc., CA
11492 3548 229 616 CABLEONE - CABLE ONE, INC., US
22773 3367 2977 164 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
16509 2504 5372 1065 AMAZON-02 - Amazon.com, Inc., US
16625 2245 1280 1763 AKAMAI-AS - Akamai Technologies, Inc.,
20115 2150 2746 536 CHARTER-20115 - Charter Communications,
30036 2126 352 145 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
18566 2113 405 108 MEGAPATH5-US - MegaPath Corporation, US
5650 2093 3074 1462 FRONTIER-FRTR - Frontier Communications
209 2081 5094 582 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 5417 1628 138 UNI2-AS, ES
39891 3778 203 20 ALJAWWALSTC-AS, SA
8551 3282 378 45 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 2644 543 1918 AKAMAI-ASN1, US
12389 2227 2221 637 ROSTELECOM-AS, RU
34984 2060 340 538 TELLCOM-AS, TR
9121 1680 1693 19 TTNET, TR
13188 1604 100 46 TRIOLAN, UA
9009 1395 148 762 M247, GB
8402 1294 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 5628 3333 590 Uninet S.A. de C.V., MX
10620 3520 539 333 Telmex Colombia S.A., CO
11830 2706 384 34 Instituto Costarricense de Electricidad
6503 1467 433 54 Axtel, S.A.B. de C.V., MX
7303 1435 971 232 Telecom Argentina S.A., AR
28573 1331 2247 180 CLARO S.A., BR
6147 1242 377 29 Telefonica del Peru S.A.A., PE
3816 1022 505 113 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
13999 951 518 247 Mega Cable, S.A. de C.V., MX
11172 928 144 66 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 1207 393 21 LINKdotNET-AS, EG
37611 902 107 9 Afrihost, ZA
24835 848 636 22 RAYA-AS, EG
36903 828 416 125 MT-MPLS, MA
36992 800 1531 70 ETISALAT-MISR, EG
8452 700 1731 19 TE-AS TE-AS, EG
29571 485 70 12 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 5628 3333 590 Uninet S.A. de C.V., MX
12479 5417 1628 138 UNI2-AS, ES
7545 4666 542 544 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4658 4192 74 ERX-CERNET-BKB China Education and Rese
39891 3778 203 20 ALJAWWALSTC-AS, SA
6327 3616 1326 91 SHAW - Shaw Communications Inc., CA
11492 3548 229 616 CABLEONE - CABLE ONE, INC., US
10620 3520 539 333 Telmex Colombia S.A., CO
22773 3367 2977 164 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
8551 3282 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 5417 5279 UNI2-AS, ES
4538 4658 4584 ERX-CERNET-BKB China Education and Research Net
7545 4666 4122 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 3778 3758 ALJAWWALSTC-AS, SA
6327 3616 3525 SHAW - Shaw Communications Inc., CA
8551 3282 3237 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 3367 3203 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
10620 3520 3187 Telmex Colombia S.A., CO
7552 3100 3051 VIETEL-AS-AP Viettel Group, VN
11492 3548 2932 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
/13:566 /14:1136 /15:1911 /16:13356 /17:7943 /18:13895
/19:25659 /20:39907 /21:46216 /22:92831 /23:75798 /24:420122
/25:965 /26:845 /27:903 /28:27 /29:7 /30:13
/31:0 /32:197
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
12479 4294 5417 UNI2-AS, ES
6327 3391 3616 SHAW - Shaw Communications Inc., CA
39891 2946 3778 ALJAWWALSTC-AS, SA
11492 2780 3548 CABLEONE - CABLE ONE, INC., US
8551 2736 3282 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2607 3367 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
11830 2051 2706 Instituto Costarricense de Electricidad y Telec
18566 2008 2113 MEGAPATH5-US - MegaPath Corporation, US
30036 1873 2126 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
5650 1761 2093 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)
----------------------------------------------
1:1606 2:839 4:22 5:2899 6:45 7:1
8:1187 9:1 11:3 12:1858 13:313 14:1931
15:37 16:4 17:237 18:59 20:49 23:2622
24:2536 25:2 27:2543 31:2074 32:97 35:36
36:839 37:3036 38:1688 39:295 40:120 41:3161
42:749 43:2024 44:147 45:6934 46:3252 47:251
49:1356 50:1099 51:322 52:1023 54:289 55:2
56:9 57:41 58:1720 59:1076 60:496 61:2076
62:2001 63:1812 64:4998 65:2213 66:4838 67:2702
68:1150 69:3530 70:1329 71:602 72:2444 74:2763
75:512 76:549 77:1717 78:1760 79:2328 80:1770
81:1503 82:1127 83:883 84:1101 85:2270 86:532
87:1553 88:1034 89:2469 90:215 91:6585 92:1317
93:2436 94:2588 95:3187 96:919 97:347 98:946
99:206 100:88 101:1153 102:465 103:20546 104:3548
105:248 106:857 107:1768 108:689 109:3719 110:1637
111:1880 112:1472 113:1392 114:1135 115:1725 116:1714
117:1892 118:2179 119:1641 120:1023 121:1033 122:2299
123:1656 124:1448 125:1968 128:1264 129:830 130:531
131:1624 132:736 133:219 134:1050 135:242 136:560
137:711 138:2012 139:846 140:573 141:843 142:798
143:1052 144:836 145:514 146:1262 147:800 148:1707
149:824 150:782 151:1005 152:1022 153:322 154:2906
155:899 156:1722 157:921 158:641 159:1918 160:1521
161:920 162:2685 163:795 164:1139 165:1583 166:441
167:1400 168:3272 169:842 170:4052 171:571 172:1112
173:2190 174:1014 175:905 176:2321 177:4150 178:2537
179:1416 180:2131 181:2393 182:2687 183:1068 184:1186
185:14855 186:3647 187:2479 188:2898 189:1987 190:8291
191:1527 192:10044 193:6644 194:5393 195:4066 196:3007
197:1637 198:5822 199:5987 200:7199 201:5105 202:10372
203:10242 204:4563 205:3011 206:3229 207:3287 208:3962
209:4237 210:3931 211:2000 212:3092 213:2887 214:1086
215:55 216:5933 217:2227 218:875 219:580 220:1866
221:967 222:998 223:1414
End of report
More information about the sanog
mailing list