Routing Table Report 00:00 GMT Wed 14 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: 375837
Prefixes after maximum aggregation: 168892
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 179636
Total ASes present in the Internet Routing Table: 38773
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 32221
Origin ASes announcing only one prefix: 15453
Transit ASes present in the Internet Routing Table: 5148
Transit-only ASes present in the Internet Routing Table: 130
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 46
Max AS path prepend of ASN (50137) 41
Prefixes from unregistered ASNs in the Routing Table: 4501
Unregistered ASNs in the Routing Table: 718
Number of 32-bit ASNs allocated by the RIRs: 1721
Number of 32-bit ASNs visible in the Routing Table: 1404
Prefixes from 32-bit ASNs in the Routing Table: 3244
Special use prefixes present in the Routing Table: 84
Prefixes being announced from unallocated address space: 102
Number of addresses announced to Internet: 2308241816
Equivalent to 137 /8s, 148 /16s and 249 /24s
Percentage of available address space announced: 62.3
Percentage of allocated address space announced: 62.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 155385
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92108
Total APNIC prefixes after maximum aggregation: 29495
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 88715
Unique aggregates announced from the APNIC address blocks: 36869
APNIC Region origin ASes present in the Internet Routing Table: 4548
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 709
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 85
Number of APNIC addresses announced to Internet: 610264832
Equivalent to 36 /8s, 95 /16s and 231 /24s
Percentage of available APNIC address space announced: 77.4
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: 146734
Total ARIN prefixes after maximum aggregation: 75765
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 118213
Unique aggregates announced from the ARIN address blocks: 45206
ARIN Region origin ASes present in the Internet Routing Table: 14662
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5631
ARIN Region transit ASes present in the Internet Routing Table: 1515
Average ARIN Region AS path length visible: 3.6
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: 667323036
Equivalent to 39 /8s, 198 /16s and 138 /24s
Percentage of available ARIN address space announced: 53.0
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: 90035
Total RIPE prefixes after maximum aggregation: 50180
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82295
Unique aggregates announced from the RIPE address blocks: 52763
RIPE Region origin ASes present in the Internet Routing Table: 15975
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7957
RIPE Region transit ASes present in the Internet Routing Table: 2478
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 46
Number of RIPE region 32-bit ASNs visible in the Routing Table: 997
Number of RIPE addresses announced to Internet: 473922508
Equivalent to 28 /8s, 63 /16s and 123 /24s
Percentage of available RIPE address space announced: 76.3
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: 35132
Total LACNIC prefixes after maximum aggregation: 7799
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 34330
Unique aggregates announced from the LACNIC address blocks: 17786
LACNIC Region origin ASes present in the Internet Routing Table: 1522
LACNIC Prefixes per ASN: 22.56
LACNIC Region origin ASes announcing only one prefix: 452
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: 306
Number of LACNIC addresses announced to Internet: 88899592
Equivalent to 5 /8s, 76 /16s and 128 /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: 8386
Total AfriNIC prefixes after maximum aggregation: 2071
AfriNIC Deaggregation factor: 4.05
Prefixes being announced from the AfriNIC address blocks: 6472
Unique aggregates announced from the AfriNIC address blocks: 2019
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 109
Average AfriNIC Region AS path length visible: 4.1
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: 27330048
Equivalent to 1 /8s, 161 /16s and 6 /24s
Percentage of available AfriNIC address space announced: 40.7
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 1990 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1943 11039 648 Korea Telecom (KIX)
7545 1585 301 83 TPG Internet Pty Ltd
4755 1544 638 168 Videsh Sanchar Nigam Ltd. Aut
7552 1415 1064 7 Vietel Corporation
24560 1180 337 193 Bharti Airtel Ltd.
9829 1153 989 28 BSNL National Internet Backbo
9583 1077 80 505 Sify Limited
17488 978 189 164 Hathway IP Over Cable Interne
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 3567 3817 227 bellsouth.net, inc.
18566 1912 364 237 Covad Communications
1785 1823 680 123 AppliedTheory Corporation
7029 1627 1037 210 Windstream Communications Inc
4323 1624 1101 392 Time Warner Telecom
20115 1592 1541 632 Charter Communications
22773 1454 2907 99 Cox Communications, Inc.
30036 1423 264 685 Mediacom Communications Corp
19262 1395 4724 399 Verizon Global Networks
7018 1339 7067 876 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 556 107 178 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 507 158 394 Akamai Technologies European
12479 472 594 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 354 Uninet S.A. de C.V.
28573 1309 1003 69 Types of queries are: POCs, o
7303 1153 677 170 Telecom Argentina Stet-France
14420 713 56 93 Types of queries are: POCs, o
6503 593 450 69 AVANTEL, 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
7738 515 986 31 Telecomunicacoes da Bahia S.A
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 702 445 11 TEDATA
15475 512 74 8 Nile Online
36992 302 415 15 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 204 13 14 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 3567 3817 227 bellsouth.net, inc.
23456 3244 767 1748 >>UNKNOWN<<
17974 1990 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1943 11039 648 Korea Telecom (KIX)
18566 1912 364 237 Covad Communications
1785 1823 680 123 AppliedTheory Corporation
10620 1661 305 161 TVCABLE BOGOTA
7029 1627 1037 210 Windstream Communications Inc
4323 1624 1101 392 Time Warner Telecom
20115 1592 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 1990 1959 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 3244 1496 >>UNKNOWN<<
7029 1627 1417 Windstream Communications Inc
7552 1415 1408 Vietel Corporation
4755 1544 1376 Videsh Sanchar Nigam Ltd. Aut
22773 1454 1355 Cox Communications, Inc.
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
23.18.0.0/16 25877 Open Mobile
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<<
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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:463 /14:809 /15:1452 /16:12118 /17:6228 /18:10324
/19:20280 /20:28096 /21:27541 /22:36647 /23:35232 /24:194462
/25:75 /26:88 /27:122 /28:288 /29:105 /30:555
/31:72 /32:506
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2203 3567 bellsouth.net, inc.
18566 1868 1912 Covad Communications
23456 1571 3244 >>UNKNOWN<<
10620 1556 1661 TVCABLE BOGOTA
30036 1381 1423 Mediacom Communications Corp
7029 1309 1627 Windstream Communications Inc
11492 1104 1142 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1823 AppliedTheory Corporation
22773 943 1454 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:365 2:53 4:19 5:1 6:3 8:353
12:1953 13:1 14:540 15:13 16:3 17:5
20:10 23:32 24:1679 27:943 31:525 32:149
33:3 34:2 36:4 38:742 40:107 41:2463
42:45 44:3 46:981 47:3 49:239 50:416
52:13 54:2 55:7 56:2 57:44 58:873
59:493 60:376 61:1178 62:1095 63:1965 64:4080
65:2305 66:3969 67:1985 68:1278 69:3279 70:828
71:377 72:1888 73:1 74:2481 75:340 76:347
77:871 78:669 79:485 80:1128 81:846 82:519
83:497 84:704 85:1093 86:415 87:865 88:351
89:1557 90:234 91:4090 92:526 93:1155 94:1344
95:799 96:428 97:271 98:944 99:37 101:205
103:288 106:71 107:44 108:82 109:1023 110:668
111:745 112:321 113:442 114:567 115:697 116:947
117:699 118:899 119:1202 120:337 121:703 122:1604
123:1017 124:1349 125:1400 128:253 129:182 130:166
131:583 132:119 133:21 134:216 135:52 136:212
137:138 138:294 139:119 140:493 141:289 142:392
143:417 144:490 145:61 146:467 147:226 148:689
149:251 150:153 151:190 152:447 153:179 154:6
155:392 156:202 157:355 158:142 159:460 160:324
161:206 162:335 163:173 164:513 165:401 166:538
167:434 168:748 169:149 170:857 171:84 172:1
173:1650 174:634 175:403 176:176 177:249 178:996
180:1066 181:27 182:615 183:236 184:365 185:1
186:1359 187:669 188:936 189:866 190:5127 192:5959
193:5015 194:3551 195:3090 196:1238 197:148 198:3633
199:4124 200:5511 201:1631 202:8552 203:8557 204:4262
205:2352 206:2742 207:2846 208:4159 209:3548 210:2713
211:1523 212:2132 213:1780 214:781 215:76 216:4903
217:1605 218:553 219:331 220:1227 221:516 222:344
223:267
End of report
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