[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Apr 19 18:03:28 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 20 Apr, 2019
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 746957
Prefixes after maximum aggregation (per Origin AS): 286549
Deaggregation factor: 2.61
Unique aggregates announced (without unneeded subnets): 359606
Total ASes present in the Internet Routing Table: 63934
Prefixes per ASN: 11.68
Origin-only ASes present in the Internet Routing Table: 55016
Origin ASes announcing only one prefix: 23717
Transit ASes present in the Internet Routing Table: 8918
Transit-only ASes present in the Internet Routing Table: 276
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 40
Max AS path prepend of ASN ( 22394) 37
Prefixes from unregistered ASNs in the Routing Table: 23
Number of instances of unregistered ASNs: 26
Number of 32-bit ASNs allocated by the RIRs: 26645
Number of 32-bit ASNs visible in the Routing Table: 21734
Prefixes from 32-bit ASNs in the Routing Table: 95335
Number of bogon 32-bit ASNs visible in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 240
Number of addresses announced to Internet: 2850884224
Equivalent to 169 /8s, 237 /16s and 10 /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: 249808
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 201295
Total APNIC prefixes after maximum aggregation: 58160
APNIC Deaggregation factor: 3.46
Prefixes being announced from the APNIC address blocks: 198092
Unique aggregates announced from the APNIC address blocks: 82348
APNIC Region origin ASes present in the Internet Routing Table: 9656
APNIC Prefixes per ASN: 20.51
APNIC Region origin ASes announcing only one prefix: 2704
APNIC Region transit ASes present in the Internet Routing Table: 1431
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: 4654
Number of APNIC addresses announced to Internet: 773909376
Equivalent to 46 /8s, 32 /16s and 235 /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: 221967
Total ARIN prefixes after maximum aggregation: 104388
ARIN Deaggregation factor: 2.13
Prefixes being announced from the ARIN address blocks: 221005
Unique aggregates announced from the ARIN address blocks: 105318
ARIN Region origin ASes present in the Internet Routing Table: 18431
ARIN Prefixes per ASN: 11.99
ARIN Region origin ASes announcing only one prefix: 6835
ARIN Region transit ASes present in the Internet Routing Table: 1902
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 40
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2668
Number of ARIN addresses announced to Internet: 1079461760
Equivalent to 64 /8s, 87 /16s and 71 /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: 205826
Total RIPE prefixes after maximum aggregation: 98067
RIPE Deaggregation factor: 2.10
Prefixes being announced from the RIPE address blocks: 202113
Unique aggregates announced from the RIPE address blocks: 120064
RIPE Region origin ASes present in the Internet Routing Table: 25995
RIPE Prefixes per ASN: 7.78
RIPE Region origin ASes announcing only one prefix: 11542
RIPE Region transit ASes present in the Internet Routing Table: 3687
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 8022
Number of RIPE addresses announced to Internet: 718821248
Equivalent to 42 /8s, 216 /16s and 87 /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: 96496
Total LACNIC prefixes after maximum aggregation: 21634
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 97895
Unique aggregates announced from the LACNIC address blocks: 42364
LACNIC Region origin ASes present in the Internet Routing Table: 8291
LACNIC Prefixes per ASN: 11.81
LACNIC Region origin ASes announcing only one prefix: 2201
LACNIC Region transit ASes present in the Internet Routing Table: 1533
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 27
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 5842
Number of LACNIC addresses announced to Internet: 173703424
Equivalent to 10 /8s, 90 /16s and 129 /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: 21349
Total AfriNIC prefixes after maximum aggregation: 4281
AfriNIC Deaggregation factor: 4.99
Prefixes being announced from the AfriNIC address blocks: 27612
Unique aggregates announced from the AfriNIC address blocks: 9289
AfriNIC Region origin ASes present in the Internet Routing Table: 1269
AfriNIC Prefixes per ASN: 21.76
AfriNIC Region origin ASes announcing only one prefix: 435
AfriNIC Region transit ASes present in the Internet Routing Table: 241
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: 548
Number of AfriNIC addresses announced to Internet: 104731648
Equivalent to 6 /8s, 62 /16s and 20 /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 4728 546 551 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4711 4192 74 ERX-CERNET-BKB China Education and Rese
7552 3133 1305 53 VIETEL-AS-AP Viettel Group, VN
45899 3004 1738 112 VNPT-AS-VN VNPT Corp, VN
9829 2734 1496 551 BSNL-NIB National Internet Backbone, IN
4766 2611 11120 762 KIXS-AS-KR Korea Telecom, KR
9808 2448 8699 27 CMNET-GD Guangdong Mobile Communication
9394 2176 4898 27 CTTNET China TieTong Telecommunications
4755 2148 429 185 TATACOMM-AS TATA Communications formerl
9498 2046 427 171 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
11492 3644 238 587 CABLEONE - CABLE ONE, INC., US
6327 3624 1325 94 SHAW - Shaw Communications Inc., CA
22773 3397 2976 161 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
16509 2657 5908 1110 AMAZON-02 - Amazon.com, Inc., US
16625 2408 1318 1822 AKAMAI-AS - Akamai Technologies, Inc.,
30036 2172 356 112 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
20115 2149 2751 527 CHARTER-20115 - Charter Communications,
18566 2108 405 108 MEGAPATH5-US - MegaPath Corporation, US
5650 2086 3074 1462 FRONTIER-FRTR - Frontier Communications
209 2040 5103 576 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 5437 1629 140 UNI2-AS, ES
39891 3778 203 20 ALJAWWALSTC-AS, SA
8551 3238 378 45 BEZEQ-INTERNATIONAL-AS Bezeqint Interne
20940 2642 534 1916 AKAMAI-ASN1, US
12389 2236 2222 640 ROSTELECOM-AS, RU
34984 2082 343 539 TELLCOM-AS, TR
9121 1671 1693 19 TTNET, TR
13188 1605 100 47 TRIOLAN, UA
9009 1433 149 784 M247, GB
8402 1250 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 5680 3338 598 Uninet S.A. de C.V., MX
10620 3438 537 382 Telmex Colombia S.A., CO
11830 2708 384 34 Instituto Costarricense de Electricidad
7303 1469 1006 255 Telecom Argentina S.A., AR
28573 1366 2248 196 CLARO S.A., BR
6503 1300 433 53 Axtel, S.A.B. de C.V., MX
6147 1246 376 28 Telefonica del Peru S.A.A., PE
3816 1041 507 128 COLOMBIA TELECOMUNICACIONES S.A. ESP, C
11172 955 144 64 Alestra, S. de R.L. de C.V., MX
13999 954 512 241 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 896 107 9 Afrihost, ZA
24835 887 646 21 RAYA-AS, EG
36992 841 1531 68 ETISALAT-MISR, EG
36903 827 416 126 MT-MPLS, MA
8452 708 1731 19 TE-AS TE-AS, EG
29571 494 70 12 ORANGE-COTE-IVOIRE, CI
37492 470 470 57 ORANGE-, TN
15706 421 32 6 Sudatel, SD
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 5680 3338 598 Uninet S.A. de C.V., MX
12479 5437 1629 140 UNI2-AS, ES
7545 4728 546 551 TPG-INTERNET-AP TPG Telecom Limited, AU
4538 4711 4192 74 ERX-CERNET-BKB China Education and Rese
39891 3778 203 20 ALJAWWALSTC-AS, SA
11492 3644 238 587 CABLEONE - CABLE ONE, INC., US
6327 3624 1325 94 SHAW - Shaw Communications Inc., CA
10620 3438 537 382 Telmex Colombia S.A., CO
22773 3397 2976 161 ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
8551 3238 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 5437 5297 UNI2-AS, ES
4538 4711 4637 ERX-CERNET-BKB China Education and Research Net
7545 4728 4177 TPG-INTERNET-AP TPG Telecom Limited, AU
39891 3778 3758 ALJAWWALSTC-AS, SA
6327 3624 3530 SHAW - Shaw Communications Inc., CA
22773 3397 3236 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
8551 3238 3193 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
7552 3133 3080 VIETEL-AS-AP Viettel Group, VN
11492 3644 3057 CABLEONE - CABLE ONE, INC., US
10620 3438 3056 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
65549 DOCUMENT 117.239.163.0/24 65544 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&
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 /9:10 /10:37 /11:100 /12:291
/13:568 /14:1136 /15:1908 /16:13369 /17:7968 /18:13899
/19:25644 /20:40186 /21:46265 /22:93440 /23:75950 /24:425109
/25:1065 /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 4355 5437 UNI2-AS, ES
6327 3398 3624 SHAW - Shaw Communications Inc., CA
39891 2946 3778 ALJAWWALSTC-AS, SA
11492 2853 3644 CABLEONE - CABLE ONE, INC., US
8551 2692 3238 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo
22773 2633 3397 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications
11830 2053 2708 Instituto Costarricense de Electricidad y Telec
18566 2003 2108 MEGAPATH5-US - MegaPath Corporation, US
30036 1919 2172 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
5650 1754 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)
----------------------------------------------
1:1598 2:989 3:6 4:21 5:3103 6:45
7:1 8:1294 9:1 12:1799 13:330 14:1994
15:36 16:4 17:245 18:58 20:50 23:2676
24:2497 25:2 27:2480 31:1977 32:101 35:36
36:850 37:3054 38:1733 39:297 40:121 41:3268
42:775 43:2023 44:150 45:7311 46:3216 47:259
49:1354 50:1108 51:321 52:1015 54:283 55:701
56:6 57:43 58:1791 59:1076 60:507 61:2127
62:2125 63:1823 64:4957 65:2225 66:4835 67:2716
68:1177 69:3510 70:1323 71:615 72:2471 74:2758
75:536 76:543 77:1760 78:1810 79:2280 80:1804
81:1509 82:1125 83:896 84:1128 85:2309 86:510
87:1548 88:1055 89:2579 90:217 91:6565 92:1379
93:2474 94:2531 95:3247 96:930 97:343 98:953
99:393 100:87 101:1162 102:544 103:20984 104:3544
105:252 106:798 107:1780 108:694 109:3730 110:1654
111:1936 112:1477 113:1401 114:1144 115:1715 116:1744
117:1894 118:2180 119:1631 120:1022 121:1041 122:2354
123:1648 124:1473 125:1973 128:1236 129:830 130:534
131:1803 132:786 133:221 134:1091 135:241 136:569
137:742 138:2052 139:866 140:645 141:877 142:802
143:1049 144:847 145:494 146:1269 147:834 148:1720
149:848 150:783 151:1010 152:1059 153:335 154:2811
155:914 156:1629 157:960 158:651 159:1943 160:1584
161:923 162:2750 163:808 164:1194 165:1579 166:448
167:1392 168:3279 169:870 170:4071 171:576 172:1191
173:2216 174:1043 175:915 176:2332 177:4177 178:2534
179:1451 180:2149 181:2429 182:2673 183:1089 184:1504
185:14983 186:3661 187:2463 188:2900 189:1985 190:8303
191:1596 192:10057 193:6654 194:5410 195:4096 196:3139
197:1777 198:5894 199:6006 200:7159 201:5104 202:10414
203:10122 204:4543 205:3028 206:3229 207:3228 208:3957
209:4241 210:3935 211:2009 212:3154 213:2920 214:1100
215:54 216:5930 217:2237 218:883 219:582 220:1855
221:968 222:987 223:1365
End of report
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