[SANOG] Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 23 18:33:55 UTC 2013
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, AusNOG, SANOG, PacNOG, LacNOG,
TRNOG, CaribNOG and the RIPE Routing Working Group.
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 24 Aug, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 463793
Prefixes after maximum aggregation: 187304
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 230444
Total ASes present in the Internet Routing Table: 44792
Prefixes per ASN: 10.35
Origin-only ASes present in the Internet Routing Table: 35028
Origin ASes announcing only one prefix: 16228
Transit ASes present in the Internet Routing Table: 5898
Transit-only ASes present in the Internet Routing Table: 174
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 29
Max AS path prepend of ASN ( 19037) 22
Prefixes from unregistered ASNs in the Routing Table: 4740
Unregistered ASNs in the Routing Table: 1572
Number of 32-bit ASNs allocated by the RIRs: 4971
Number of 32-bit ASNs visible in the Routing Table: 3866
Prefixes from 32-bit ASNs in the Routing Table: 11761
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 320
Number of addresses announced to Internet: 2636723020
Equivalent to 157 /8s, 41 /16s and 51 /24s
Percentage of available address space announced: 71.2
Percentage of allocated address space announced: 71.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 94.9
Total number of prefixes smaller than registry allocations: 162609
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 109696
Total APNIC prefixes after maximum aggregation: 33394
APNIC Deaggregation factor: 3.28
Prefixes being announced from the APNIC address blocks: 111547
Unique aggregates announced from the APNIC address blocks: 46487
APNIC Region origin ASes present in the Internet Routing Table: 4868
APNIC Prefixes per ASN: 22.91
APNIC Region origin ASes announcing only one prefix: 1230
APNIC Region transit ASes present in the Internet Routing Table: 824
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 647
Number of APNIC addresses announced to Internet: 726650112
Equivalent to 43 /8s, 79 /16s and 205 /24s
Percentage of available APNIC address space announced: 84.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-133119
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: 161354
Total ARIN prefixes after maximum aggregation: 80971
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 161884
Unique aggregates announced from the ARIN address blocks: 75042
ARIN Region origin ASes present in the Internet Routing Table: 15831
ARIN Prefixes per ASN: 10.23
ARIN Region origin ASes announcing only one prefix: 6007
ARIN Region transit ASes present in the Internet Routing Table: 1670
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 19
Number of ARIN addresses announced to Internet: 1070483456
Equivalent to 63 /8s, 206 /16s and 72 /24s
Percentage of available ARIN address space announced: 56.6
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, 393216-394239
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: 118625
Total RIPE prefixes after maximum aggregation: 60768
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122478
Unique aggregates announced from the RIPE address blocks: 79045
RIPE Region origin ASes present in the Internet Routing Table: 17370
RIPE Prefixes per ASN: 7.05
RIPE Region origin ASes announcing only one prefix: 8230
RIPE Region transit ASes present in the Internet Routing Table: 2811
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2386
Number of RIPE addresses announced to Internet: 657049124
Equivalent to 39 /8s, 41 /16s and 198 /24s
Percentage of available RIPE address space announced: 95.5
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, 196608-199679
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: 50637
Total LACNIC prefixes after maximum aggregation: 9581
LACNIC Deaggregation factor: 5.29
Prefixes being announced from the LACNIC address blocks: 55338
Unique aggregates announced from the LACNIC address blocks: 25644
LACNIC Region origin ASes present in the Internet Routing Table: 2003
LACNIC Prefixes per ASN: 27.63
LACNIC Region origin ASes announcing only one prefix: 568
LACNIC Region transit ASes present in the Internet Routing Table: 367
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 808
Number of LACNIC addresses announced to Internet: 135501864
Equivalent to 8 /8s, 19 /16s and 152 /24s
Percentage of available LACNIC address space announced: 80.8
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus 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: 11632
Total AfriNIC prefixes after maximum aggregation: 2548
AfriNIC Deaggregation factor: 4.57
Prefixes being announced from the AfriNIC address blocks: 12226
Unique aggregates announced from the AfriNIC address blocks: 3928
AfriNIC Region origin ASes present in the Internet Routing Table: 651
AfriNIC Prefixes per ASN: 18.78
AfriNIC Region origin ASes announcing only one prefix: 193
AfriNIC Region transit ASes present in the Internet Routing Table: 135
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 46605824
Equivalent to 2 /8s, 199 /16s and 38 /24s
Percentage of available AfriNIC address space announced: 46.3
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
4766 2922 11561 921 Korea Telecom (KIX)
17974 2656 871 92 PT TELEKOMUNIKASI INDONESIA
7545 2062 321 113 TPG Internet Pty Ltd
4755 1761 391 189 TATA Communications formerly
9829 1530 1221 45 BSNL National Internet Backbo
9583 1226 92 505 Sify Limited
9498 1174 309 70 BHARTI Airtel Ltd.
4808 1152 2126 335 CNCGROUP IP network: China169
7552 1139 1080 13 Vietel Corporation
24560 1089 394 160 Bharti Airtel Ltd., Telemedia
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
6389 2976 3689 62 bellsouth.net, inc.
18566 2065 382 184 Covad Communications
22773 2039 2933 123 Cox Communications, Inc.
1785 2006 679 125 PaeTec Communications, Inc.
20115 1674 1645 627 Charter Communications
4323 1621 1105 408 Time Warner Telecom
701 1522 11103 798 UUNET Technologies, Inc.
30036 1346 301 643 Mediacom Communications Corp
7018 1312 11293 829 AT&T WorldNet Services
11492 1223 218 361 Cable One
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
8402 1585 544 16 Corbina telecom
34984 1306 244 223 BILISIM TELEKOM
31148 979 43 18 FreeNet ISP
20940 971 349 749 Akamai Technologies European
2118 962 97 13 EUnet/RELCOM Autonomous Syste
6830 898 2371 429 UPC Distribution Services
13188 845 99 71 Educational Network
8551 747 370 41 Bezeq International
12479 687 797 53 Uni2 Autonomous System
58113 541 55 339 LIR DATACENTER TELECOM SRL
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
28573 3163 1682 108 NET Servicos de Comunicao S.A
10620 2673 425 219 TVCABLE BOGOTA
7303 1732 1157 222 Telecom Argentina Stet-France
18881 1454 844 20 Global Village Telecom
8151 1280 2767 390 UniNet S.A. de C.V.
11830 945 364 15 Instituto Costarricense de El
27947 837 94 91 Telconet S.A
6503 787 434 63 AVANTEL, S.A.
3816 721 302 83 Empresa Nacional de Telecomun
7738 698 1370 35 Telecomunicacoes da Bahia S.A
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
36998 1861 112 5 MOBITEL
24863 871 274 30 LINKdotNET AS number
6713 543 633 26 Itissalat Al-MAGHRIB
8452 437 956 9 TEDATA
24835 291 80 8 RAYA Telecom - Egypt
3741 258 921 217 The Internet Solution
15706 221 32 6 Sudatel Internet Exchange Aut
29571 220 17 12 Ci Telecom Autonomous system
36992 220 501 29 Etisalat MISR
12258 193 28 71 Vodacom Internet Company
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
28573 3163 1682 108 NET Servicos de Comunicao S.A
6389 2976 3689 62 bellsouth.net, inc.
4766 2922 11561 921 Korea Telecom (KIX)
10620 2673 425 219 TVCABLE BOGOTA
17974 2656 871 92 PT TELEKOMUNIKASI INDONESIA
18566 2065 382 184 Covad Communications
7545 2062 321 113 TPG Internet Pty Ltd
22773 2039 2933 123 Cox Communications, Inc.
1785 2006 679 125 PaeTec Communications, Inc.
36998 1861 112 5 MOBITEL
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6389 2976 2914 bellsouth.net, inc.
17974 2656 2564 PT TELEKOMUNIKASI INDONESIA
10620 2673 2454 TVCABLE BOGOTA
4766 2922 2001 Korea Telecom (KIX)
7545 2062 1949 TPG Internet Pty Ltd
22773 2039 1916 Cox Communications, Inc.
18566 2065 1881 Covad Communications
1785 2006 1881 PaeTec Communications, Inc.
36998 1861 1856 MOBITEL
4755 1761 1572 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.103.0/24 209 Qwest
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic
33649 UNALLOCATED 12.111.112.0/24 19029 New Edge Networks
30621 UNALLOCATED 12.151.74.0/23 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange
Complete listing at http://thyme.rand.apnic.net/current/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.92.16.0/21 8001 Net Access Corporation
23.92.24.0/22 6939 Hurricane Electric
23.92.48.0/20 62471 SupremeBytes, LLC
23.92.64.0/24 54540 Incero LLC
23.92.65.0/24 54540 Incero LLC
23.92.66.0/24 54540 Incero LLC
23.92.67.0/24 54540 Incero LLC
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 /8:16 /9:11 /10:30 /11:93 /12:250
/13:480 /14:906 /15:1616 /16:12745 /17:6658 /18:11054
/19:22680 /20:32290 /21:34899 /22:48966 /23:42842 /24:245731
/25:877 /26:1012 /27:481 /28:44 /29:75 /30:18
/31:0 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2016 2065 Covad Communications
36998 1826 1861 MOBITEL
6389 1711 2976 bellsouth.net, inc.
22773 1328 2039 Cox Communications, Inc.
8402 1321 1585 Corbina telecom
30036 1209 1346 Mediacom Communications Corp
11492 1184 1223 Cable One
1785 1079 2006 PaeTec Communications, Inc.
6983 1023 1151 ITC^Deltacom
10620 991 2673 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:800 2:718 3:3 4:19 5:913 6:17
8:600 12:1894 13:2 14:872 15:11 16:3
17:11 18:19 20:18 23:360 24:1739 27:1551
31:1410 32:45 33:2 34:5 36:70 37:1826
38:901 39:2 40:180 41:3252 42:243 44:9
46:1981 47:3 49:661 50:842 52:12 54:37
55:6 57:26 58:1169 59:616 60:332 61:1400
62:1176 63:1999 64:4550 65:2247 66:4199 67:2078
68:1092 69:3305 70:864 71:495 72:2009 74:2540
75:325 76:306 77:1159 78:1115 79:623 80:1308
81:1021 82:647 83:584 84:571 85:1219 86:482
87:1051 88:539 89:1821 90:158 91:5581 92:641
93:1661 94:2022 95:1550 96:587 97:347 98:1038
99:44 100:29 101:597 103:3181 105:519 106:138
107:210 108:498 109:1883 110:946 111:1104 112:568
113:792 114:729 115:1029 116:964 117:806 118:1120
119:1289 120:367 121:740 122:1864 123:1247 124:1373
125:1348 128:607 129:223 130:310 131:671 132:346
133:160 134:279 135:67 136:267 137:268 138:347
139:189 140:200 141:322 142:548 143:389 144:499
145:95 146:531 147:481 148:673 149:350 150:151
151:560 152:416 153:194 154:30 155:483 156:272
157:406 158:282 159:748 160:352 161:457 162:595
163:221 164:628 165:568 166:255 167:603 168:1030
169:126 170:1074 171:191 172:25 173:1583 174:515
175:496 176:1190 177:2182 178:1903 179:102 180:1525
181:648 182:1226 183:441 184:664 185:769 186:2459
187:1407 188:1893 189:1283 190:6891 192:6946 193:5541
194:4605 195:3603 196:1333 197:1009 198:4612 199:5426
200:5981 201:2571 202:8890 203:8821 204:4530 205:2604
206:2834 207:2914 208:3997 209:3640 210:2913 211:1557
212:2262 213:2034 214:924 215:100 216:5309 217:1653
218:619 219:304 220:1277 221:553 222:324 223:504
End of report
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