Routing Table Report 00:00 GMT Thu 15 Sep, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 375101
Prefixes after maximum aggregation: 169001
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184642
Total ASes present in the Internet Routing Table: 38775
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 32228
Origin ASes announcing only one prefix: 15468
Transit ASes present in the Internet Routing Table: 5139
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 46
Max AS path prepend of ASN (50137) 41
Prefixes from unregistered ASNs in the Routing Table: 4510
Unregistered ASNs in the Routing Table: 725
Number of 32-bit ASNs allocated by the RIRs: 1724
Number of 32-bit ASNs visible in the Routing Table: 1408
Prefixes from 32-bit ASNs in the Routing Table: 3252
Special use prefixes present in the Routing Table: 84
Prefixes being announced from unallocated address space: 101
Number of addresses announced to Internet: 2477866392
Equivalent to 147 /8s, 177 /16s and 61 /24s
Percentage of available address space announced: 66.9
Percentage of allocated address space announced: 66.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.3
Total number of prefixes smaller than registry allocations: 155493
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91311
Total APNIC prefixes after maximum aggregation: 29535
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 87953
Unique aggregates announced from the APNIC address blocks: 38155
APNIC Region origin ASes present in the Internet Routing Table: 4549
APNIC Prefixes per ASN: 19.33
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 87
Number of APNIC addresses announced to Internet: 627176448
Equivalent to 37 /8s, 97 /16s and 244 /24s
Percentage of available APNIC address space announced: 79.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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, 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: 146696
Total ARIN prefixes after maximum aggregation: 75804
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 118247
Unique aggregates announced from the ARIN address blocks: 47890
ARIN Region origin ASes present in the Internet Routing Table: 14665
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5634
ARIN Region transit ASes present in the Internet Routing Table: 1508
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804884892
Equivalent to 47 /8s, 249 /16s and 145 /24s
Percentage of available ARIN address space announced: 64.0
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, 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, 173/8,
174/8, 184/8, 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: 89991
Total RIPE prefixes after maximum aggregation: 50206
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82223
Unique aggregates announced from the RIPE address blocks: 53850
RIPE Region origin ASes present in the Internet Routing Table: 15971
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7965
RIPE Region transit ASes present in the Internet Routing Table: 2486
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 46
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1002
Number of RIPE addresses announced to Internet: 489299660
Equivalent to 29 /8s, 42 /16s and 30 /24s
Percentage of available RIPE address space announced: 78.8
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 35201
Total LACNIC prefixes after maximum aggregation: 7803
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 34391
Unique aggregates announced from the LACNIC address blocks: 17740
LACNIC Region origin ASes present in the Internet Routing Table: 1520
LACNIC Prefixes per ASN: 22.63
LACNIC Region origin ASes announcing only one prefix: 453
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 303
Number of LACNIC addresses announced to Internet: 88920584
Equivalent to 5 /8s, 76 /16s and 210 /24s
Percentage of available LACNIC address space announced: 58.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8456
Total AfriNIC prefixes after maximum aggregation: 2060
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6546
Unique aggregates announced from the AfriNIC address blocks: 1997
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.52
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27246080
Equivalent to 1 /8s, 159 /16s and 190 /24s
Percentage of available AfriNIC address space announced: 40.6
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
17974 2002 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1944 11055 649 Korea Telecom (KIX)
7545 1585 301 83 TPG Internet Pty Ltd
4755 1544 638 168 Videsh Sanchar Nigam Ltd. Aut
24560 1180 337 193 Bharti Airtel Ltd.
9829 1155 989 28 BSNL National Internet Backbo
9583 1077 80 505 Sify Limited
17488 978 189 164 Hathway IP Over Cable Interne
7552 977 1062 11 Vietel Corporation
18101 950 118 139 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3562 3817 226 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1823 680 123 AppliedTheory Corporation
4323 1625 1101 393 Time Warner Telecom
7029 1618 1003 279 Windstream Communications Inc
20115 1593 1541 632 Charter Communications
22773 1455 2907 99 Cox Communications, Inc.
30036 1426 264 687 Mediacom Communications Corp
19262 1395 4724 399 Verizon Global Networks
7018 1340 7068 879 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 1076 824 200 KPNQwest Backbone AS
34984 557 108 179 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 527 1811 322 UPC Distribution Services
3292 523 2080 404 TDC Tele Danmark
20940 510 160 397 Akamai Technologies European
12479 473 594 8 Uni2 Autonomous System
8866 460 133 26 Bulgarian Telecommunication C
3320 431 8152 375 Deutsche Telekom AG
29049 424 31 55 AzerSat LLC.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1661 305 161 TVCABLE BOGOTA
8151 1449 2783 355 Uninet S.A. de C.V.
28573 1316 1008 74 Types of queries are: POCs, o
7303 1153 677 170 Telecom Argentina Stet-France
14420 718 57 92 Types of queries are: POCs, o
6503 595 450 70 AVANTEL, S.A.
27947 581 56 77 Telconet S.A
22047 579 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 538 232 99 COLOMBIA TELECOMUNICACIONES S
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 811 147 42 LINKdotNET AS number
8452 701 445 11 TEDATA
15475 512 74 8 Nile Online
36992 301 415 15 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 236 13 8 Starcomms Nigeria Limited
15706 195 32 6 Sudatel Internet Exchange Aut
12258 194 28 63 YEBO-AS
29571 191 17 11 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3562 3817 226 bellsouth.net, inc.
23456 3252 768 1753 >>UNKNOWN<<
17974 2002 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1944 11055 649 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1823 680 123 AppliedTheory Corporation
10620 1661 305 161 TVCABLE BOGOTA
4323 1625 1101 393 Time Warner Telecom
7029 1618 1003 279 Windstream Communications Inc
20115 1593 1541 632 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 2002 1971 PT TELEKOMUNIKASI INDONESIA
1785 1823 1700 AppliedTheory Corporation
18566 1912 1675 Covad Communications
7545 1585 1502 TPG Internet Pty Ltd
10620 1661 1500 TVCABLE BOGOTA
23456 3252 1499 >>UNKNOWN<<
4755 1544 1376 Videsh Sanchar Nigam Ltd. Aut
22773 1455 1356 Cox Communications, Inc.
7029 1618 1339 Windstream Communications Inc
4766 1944 1295 Korea Telecom (KIX)
Complete listing at http://thyme.rand.apnic.net/rviews/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
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 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
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:19 /9:12 /10:27 /11:81 /12:234
/13:464 /14:807 /15:1445 /16:12079 /17:6219 /18:10291
/19:20261 /20:27965 /21:27401 /22:36455 /23:35174 /24:194357
/25:74 /26:89 /27:122 /28:289 /29:104 /30:555
/31:72 /32:505
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2199 3562 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1576 3252 >>UNKNOWN<<
10620 1556 1661 TVCABLE BOGOTA
30036 1384 1426 Mediacom Communications Corp
7029 1305 1618 Windstream Communications Inc
11492 1102 1140 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1823 AppliedTheory Corporation
22773 944 1455 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:372 2:51 4:19 5:1 6:3 8:352
12:1955 13:1 14:542 15:13 16:3 17:5
20:10 23:32 24:1680 27:939 31:530 32:149
33:4 34:2 36:4 38:741 40:107 41:2528
42:46 44:3 46:979 47:3 49:239 50:419
52:13 54:2 55:6 56:2 57:44 58:872
59:494 60:376 61:1178 62:1098 63:1964 64:4082
65:2304 66:3970 67:1983 68:1278 69:3289 70:828
71:377 72:1887 73:1 74:2484 75:334 76:353
77:870 78:668 79:483 80:1125 81:843 82:512
83:497 84:702 85:1090 86:417 87:867 88:352
89:1548 90:234 91:4082 92:526 93:1155 94:1337
95:783 96:426 97:273 98:944 99:37 101:203
103:291 106:71 107:44 108:82 109:1025 110:675
111:751 112:313 113:442 114:566 115:687 116:948
117:679 118:899 119:1197 120:339 121:703 122:1606
123:1018 124:1354 125:1355 128:249 129:181 130:166
131:584 132:119 133:21 134:216 135:52 136:212
137:137 138:294 139:113 140:493 141:289 142:392
143:409 144:483 145:61 146:466 147:226 148:691
149:252 150:153 151:190 152:447 153:179 154:6
155:390 156:202 157:355 158:143 159:460 160:324
161:207 162:335 163:174 164:513 165:402 166:538
167:435 168:746 169:147 170:857 171:84 172:1
173:1648 174:634 175:405 176:173 177:246 178:1001
180:1075 181:27 182:617 183:238 184:364 185:1
186:1430 187:668 188:941 189:871 190:5164 192:5942
193:5017 194:3550 195:3086 196:1259 197:150 198:3600
199:4120 200:5482 201:1640 202:8541 203:8521 204:4262
205:2359 206:2739 207:2843 208:4162 209:3548 210:2706
211:1470 212:2131 213:1777 214:779 215:75 216:4908
217:1610 218:554 219:332 220:1200 221:516 222:345
223:266
End of report
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