Weekly Routing Table Report
Routing Analysis Role Account
cscora at apnic.net
Fri Aug 30 18:34:02 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 31 Aug, 2013
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 465107
Prefixes after maximum aggregation: 187550
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 231015
Total ASes present in the Internet Routing Table: 44850
Prefixes per ASN: 10.37
Origin-only ASes present in the Internet Routing Table: 35058
Origin ASes announcing only one prefix: 16251
Transit ASes present in the Internet Routing Table: 5917
Transit-only ASes present in the Internet Routing Table: 178
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 29
Max AS path prepend of ASN ( 36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5356
Unregistered ASNs in the Routing Table: 1757
Number of 32-bit ASNs allocated by the RIRs: 4989
Number of 32-bit ASNs visible in the Routing Table: 3875
Prefixes from 32-bit ASNs in the Routing Table: 11812
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 352
Number of addresses announced to Internet: 2638983692
Equivalent to 157 /8s, 75 /16s and 178 /24s
Percentage of available address space announced: 71.3
Percentage of allocated address space announced: 71.3
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: 162731
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 110153
Total APNIC prefixes after maximum aggregation: 33429
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 112046
Unique aggregates announced from the APNIC address blocks: 46620
APNIC Region origin ASes present in the Internet Routing Table: 4873
APNIC Prefixes per ASN: 22.99
APNIC Region origin ASes announcing only one prefix: 1230
APNIC Region transit ASes present in the Internet Routing Table: 828
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: 650
Number of APNIC addresses announced to Internet: 727650304
Equivalent to 43 /8s, 95 /16s and 16 /24s
Percentage of available APNIC address space announced: 85.0
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: 161368
Total ARIN prefixes after maximum aggregation: 80974
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 161870
Unique aggregates announced from the ARIN address blocks: 75307
ARIN Region origin ASes present in the Internet Routing Table: 15853
ARIN Prefixes per ASN: 10.21
ARIN Region origin ASes announcing only one prefix: 6023
ARIN Region transit ASes present in the Internet Routing Table: 1667
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: 20
Number of ARIN addresses announced to Internet: 1070990592
Equivalent to 63 /8s, 214 /16s and 5 /24s
Percentage of available ARIN address space announced: 56.7
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: 119263
Total RIPE prefixes after maximum aggregation: 60940
RIPE Deaggregation factor: 1.96
Prefixes being announced from the RIPE address blocks: 123132
Unique aggregates announced from the RIPE address blocks: 79169
RIPE Region origin ASes present in the Internet Routing Table: 17385
RIPE Prefixes per ASN: 7.08
RIPE Region origin ASes announcing only one prefix: 8240
RIPE Region transit ASes present in the Internet Routing Table: 2817
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: 2392
Number of RIPE addresses announced to Internet: 657235428
Equivalent to 39 /8s, 44 /16s and 157 /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: 50836
Total LACNIC prefixes after maximum aggregation: 9620
LACNIC Deaggregation factor: 5.28
Prefixes being announced from the LACNIC address blocks: 55531
Unique aggregates announced from the LACNIC address blocks: 25704
LACNIC Region origin ASes present in the Internet Routing Table: 2000
LACNIC Prefixes per ASN: 27.77
LACNIC Region origin ASes announcing only one prefix: 563
LACNIC Region transit ASes present in the Internet Routing Table: 375
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 807
Number of LACNIC addresses announced to Internet: 135924264
Equivalent to 8 /8s, 26 /16s and 10 /24s
Percentage of available LACNIC address space announced: 81.0
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: 11573
Total AfriNIC prefixes after maximum aggregation: 2537
AfriNIC Deaggregation factor: 4.56
Prefixes being announced from the AfriNIC address blocks: 12176
Unique aggregates announced from the AfriNIC address blocks: 3888
AfriNIC Region origin ASes present in the Internet Routing Table: 652
AfriNIC Prefixes per ASN: 18.67
AfriNIC Region origin ASes announcing only one prefix: 195
AfriNIC Region transit ASes present in the Internet Routing Table: 138
Average AfriNIC Region AS path length visible: 4.7
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: 46511616
Equivalent to 2 /8s, 197 /16s and 182 /24s
Percentage of available AfriNIC address space announced: 46.2
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 2872 11560 900 Korea Telecom (KIX)
17974 2668 903 91 PT TELEKOMUNIKASI INDONESIA
7545 2062 321 112 TPG Internet Pty Ltd
4755 1768 391 190 TATA Communications formerly
9829 1492 1220 44 BSNL National Internet Backbo
9583 1227 92 506 Sify Limited
9498 1181 309 70 BHARTI Airtel Ltd.
4808 1155 2128 337 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 3069 3689 62 bellsouth.net, inc.
18566 2065 382 184 Covad Communications
22773 2042 2933 124 Cox Communications, Inc.
1785 2006 679 125 PaeTec Communications, Inc.
20115 1673 1645 629 Charter Communications
4323 1615 1103 408 Time Warner Telecom
701 1522 11119 797 UUNET Technologies, Inc.
30036 1348 301 643 Mediacom Communications Corp
7018 1311 11277 827 AT&T WorldNet Services
11492 1220 218 366 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 1642 544 16 Corbina telecom
2118 1368 97 13 EUnet/RELCOM Autonomous Syste
34984 1307 244 221 BILISIM TELEKOM
31148 982 43 18 FreeNet ISP
20940 980 351 756 Akamai Technologies European
6830 895 2367 428 UPC Distribution Services
13188 846 99 72 Educational Network
8551 751 370 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 3225 1695 101 NET Servicos de Comunicao S.A
10620 2614 421 238 TVCABLE BOGOTA
7303 1733 1158 223 Telecom Argentina Stet-France
18881 1452 844 20 Global Village Telecom
8151 1287 2774 389 UniNet S.A. de C.V.
11830 945 364 15 Instituto Costarricense de El
27947 839 94 91 Telconet S.A
6503 790 434 61 AVANTEL, S.A.
6147 734 374 25 Telefonica Del Peru
3816 723 302 83 Empresa Nacional de Telecomun
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 870 274 30 LINKdotNET AS number
6713 543 633 26 Itissalat Al-MAGHRIB
8452 435 956 9 TEDATA
24835 291 80 8 RAYA Telecom - Egypt
3741 258 921 217 The Internet Solution
36992 222 501 28 Etisalat MISR
15706 221 32 6 Sudatel Internet Exchange Aut
29571 220 17 12 Ci Telecom Autonomous system
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 3225 1695 101 NET Servicos de Comunicao S.A
6389 3069 3689 62 bellsouth.net, inc.
4766 2872 11560 900 Korea Telecom (KIX)
17974 2668 903 91 PT TELEKOMUNIKASI INDONESIA
10620 2614 421 238 TVCABLE BOGOTA
18566 2065 382 184 Covad Communications
7545 2062 321 112 TPG Internet Pty Ltd
22773 2042 2933 124 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 3069 3007 bellsouth.net, inc.
17974 2668 2577 PT TELEKOMUNIKASI INDONESIA
10620 2614 2376 TVCABLE BOGOTA
4766 2872 1972 Korea Telecom (KIX)
7545 2062 1950 TPG Internet Pty Ltd
22773 2042 1918 Cox Communications, Inc.
18566 2065 1881 Covad Communications
1785 2006 1881 PaeTec Communications, Inc.
36998 1861 1856 MOBITEL
8402 1642 1626 Corbina telecom
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.
23.90.192.0/18 36086 Broad Communications Technolo
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
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 /14:907 /15:1620 /16:12771 /17:6674 /18:11082
/19:22660 /20:32276 /21:34963 /22:49128 /23:42939 /24:246733
/25:878 /26:986 /27:460 /28:44 /29:75 /30:17
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 2016 2065 Covad Communications
36998 1826 1861 MOBITEL
6389 1714 3069 bellsouth.net, inc.
8402 1374 1642 Corbina telecom
22773 1329 2042 Cox Communications, Inc.
30036 1211 1348 Mediacom Communications Corp
11492 1181 1220 Cable One
1785 1078 2006 PaeTec Communications, Inc.
6983 1025 1153 ITC^Deltacom
10620 944 2614 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:800 2:789 3:3 4:19 5:911 6:19
8:602 12:1895 13:2 14:872 15:11 16:3
17:11 18:19 20:18 23:370 24:1741 27:1555
31:1406 32:45 33:2 34:5 36:73 37:1842
38:902 39:4 40:179 41:3239 42:244 44:9
46:1958 47:4 49:665 50:838 52:12 54:37
55:6 57:26 58:1162 59:623 60:336 61:1415
62:1220 63:1989 64:4569 65:2293 66:4176 67:2072
68:1087 69:3303 70:863 71:496 72:2003 74:2536
75:327 76:302 77:1162 78:1054 79:628 80:1315
81:1022 82:634 83:584 84:579 85:1237 86:479
87:1046 88:539 89:1819 90:158 91:5589 92:636
93:1668 94:2023 95:1528 96:524 97:347 98:1041
99:44 100:29 101:597 103:3223 105:519 106:139
107:210 108:497 109:1869 110:953 111:1114 112:568
113:791 114:711 115:1032 116:973 117:804 118:1126
119:1292 120:364 121:740 122:1868 123:1240 124:1384
125:1418 128:610 129:223 130:311 131:671 132:351
133:160 134:282 135:67 136:259 137:267 138:347
139:178 140:197 141:321 142:552 143:383 144:493
145:100 146:531 147:490 148:685 149:354 150:151
151:561 152:415 153:194 154:30 155:481 156:274
157:407 158:282 159:750 160:350 161:460 162:622
163:222 164:628 165:561 166:255 167:605 168:1033
169:126 170:1081 171:191 172:25 173:1601 174:517
175:495 176:1194 177:2105 178:1908 179:118 180:1520
181:680 182:1244 183:444 184:640 185:791 186:2480
187:1375 188:1914 189:1281 190:7042 192:6946 193:5846
194:4702 195:3591 196:1334 197:1002 198:4647 199:5442
200:6017 201:2604 202:8934 203:8905 204:4525 205:2597
206:2838 207:2900 208:3994 209:3633 210:2936 211:1556
212:2252 213:2052 214:918 215:101 216:5304 217:1648
218:623 219:314 220:1277 221:555 222:324 223:506
End of report
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