Routing Table Report 00:00 GMT Thu 08 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: 374320
Prefixes after maximum aggregation: 168434
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178888
Total ASes present in the Internet Routing Table: 38721
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 32154
Origin ASes announcing only one prefix: 15442
Transit ASes present in the Internet Routing Table: 5178
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 37
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 4416
Unregistered ASNs in the Routing Table: 691
Number of 32-bit ASNs allocated by the RIRs: 1708
Number of 32-bit ASNs visible in the Routing Table: 1389
Prefixes from 32-bit ASNs in the Routing Table: 3208
Special use prefixes present in the Routing Table: 81
Prefixes being announced from unallocated address space: 99
Number of addresses announced to Internet: 2305725077
Equivalent to 137 /8s, 110 /16s and 146 /24s
Percentage of available address space announced: 62.2
Percentage of allocated address space announced: 62.2
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: 155255
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91137
Total APNIC prefixes after maximum aggregation: 29478
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 87756
Unique aggregates announced from the APNIC address blocks: 36786
APNIC Region origin ASes present in the Internet Routing Table: 4538
APNIC Prefixes per ASN: 19.34
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 702
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 78
Number of APNIC addresses announced to Internet: 610025984
Equivalent to 36 /8s, 92 /16s and 66 /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: 146464
Total ARIN prefixes after maximum aggregation: 75472
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 117989
Unique aggregates announced from the ARIN address blocks: 44853
ARIN Region origin ASes present in the Internet Routing Table: 14659
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5630
ARIN Region transit ASes present in the Internet Routing Table: 1526
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 37
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 666769308
Equivalent to 39 /8s, 190 /16s and 23 /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: 89932
Total RIPE prefixes after maximum aggregation: 50123
RIPE Deaggregation factor: 1.79
Prefixes being announced from the RIPE address blocks: 82191
Unique aggregates announced from the RIPE address blocks: 52621
RIPE Region origin ASes present in the Internet Routing Table: 15956
RIPE Prefixes per ASN: 5.15
RIPE Region origin ASes announcing only one prefix: 7946
RIPE Region transit ASes present in the Internet Routing Table: 2497
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 989
Number of RIPE addresses announced to Internet: 473650636
Equivalent to 28 /8s, 59 /16s and 85 /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: 35033
Total LACNIC prefixes after maximum aggregation: 7765
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 34248
Unique aggregates announced from the LACNIC address blocks: 17652
LACNIC Region origin ASes present in the Internet Routing Table: 1517
LACNIC Prefixes per ASN: 22.58
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 270
Average LACNIC Region AS path length visible: 4.4
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: 88213512
Equivalent to 5 /8s, 66 /16s and 8 /24s
Percentage of available LACNIC address space announced: 58.4
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: 8364
Total AfriNIC prefixes after maximum aggregation: 2063
AfriNIC Deaggregation factor: 4.05
Prefixes being announced from the AfriNIC address blocks: 6462
Unique aggregates announced from the AfriNIC address blocks: 1985
AfriNIC Region origin ASes present in the Internet Routing Table: 482
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27263744
Equivalent to 1 /8s, 160 /16s and 3 /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 1977 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1942 11038 647 Korea Telecom (KIX)
7545 1577 301 82 TPG Internet Pty Ltd
4755 1545 375 167 Videsh Sanchar Nigam Ltd. Aut
24560 1177 336 193 Bharti Airtel Ltd.
9829 1152 989 28 BSNL National Internet Backbo
9583 1073 79 503 Sify Limited
17488 1008 191 158 Hathway IP Over Cable Interne
7552 992 1062 11 Vietel Corporation
18101 949 118 138 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 3563 3817 227 bellsouth.net, inc.
18566 1911 364 236 Covad Communications
1785 1823 680 123 AppliedTheory Corporation
7029 1627 1021 244 Windstream Communications Inc
4323 1624 1101 396 Time Warner Telecom
20115 1592 1541 633 Charter Communications
22773 1450 2907 99 Cox Communications, Inc.
19262 1394 4724 400 Verizon Global Networks
7018 1342 7051 882 AT&T WorldNet Services
30036 1322 243 687 Mediacom Communications Corp
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 1053 799 194 KPNQwest Backbone AS
34984 543 107 178 Tellcom Iletisim Hizmetleri
9116 540 326 31 Goldenlines main autonomous s
6830 525 1811 322 UPC Distribution Services
3292 518 2079 402 TDC Tele Danmark
20940 497 153 388 Akamai Technologies European
12479 465 593 7 Uni2 Autonomous System
8866 461 133 26 Bulgarian Telecommunication C
3320 430 8152 374 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 1643 301 156 TVCABLE BOGOTA
8151 1444 2781 353 Uninet S.A. de C.V.
28573 1290 1003 71 Types of queries are: POCs, o
7303 1051 578 166 Telecom Argentina Stet-France
14420 715 57 88 Types of queries are: POCs, o
6503 598 450 70 AVANTEL, S.A.
22047 579 322 17 Types of queries are: POCs, o
27947 577 56 78 Telconet S.A
10481 548 430 20 Prima S.A.
3816 536 232 98 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 812 147 43 LINKdotNET AS number
8452 643 445 11 TEDATA
15475 512 74 8 Nile Online
36992 303 415 14 Etisalat MISR
3741 267 938 228 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 219 32 6 Sudatel Internet Exchange Aut
33776 207 13 14 Starcomms Nigeria Limited
12258 194 28 63 YEBO-AS
24835 181 70 12 RAYA Telecom - Egypt
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 3563 3817 227 bellsouth.net, inc.
23456 3208 761 1723 >>UNKNOWN<<
17974 1977 516 31 PT TELEKOMUNIKASI INDONESIA
4766 1942 11038 647 Korea Telecom (KIX)
18566 1911 364 236 Covad Communications
1785 1823 680 123 AppliedTheory Corporation
10620 1643 301 156 TVCABLE BOGOTA
7029 1627 1021 244 Windstream Communications Inc
4323 1624 1101 396 Time Warner Telecom
20115 1592 1541 633 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 1977 1946 PT TELEKOMUNIKASI INDONESIA
1785 1823 1700 AppliedTheory Corporation
18566 1911 1675 Covad Communications
7545 1577 1495 TPG Internet Pty Ltd
10620 1643 1487 TVCABLE BOGOTA
23456 3208 1485 >>UNKNOWN<<
7029 1627 1383 Windstream Communications Inc
4755 1545 1378 Videsh Sanchar Nigam Ltd. Aut
22773 1450 1351 Cox Communications, Inc.
4766 1942 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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:461 /14:805 /15:1444 /16:12077 /17:6199 /18:10277
/19:20190 /20:27810 /21:27327 /22:36275 /23:35141 /24:194157
/25:76 /26:85 /27:112 /28:288 /29:103 /30:551
/31:72 /32:496
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2199 3563 bellsouth.net, inc.
18566 1868 1911 Covad Communications
23456 1550 3208 >>UNKNOWN<<
10620 1538 1643 TVCABLE BOGOTA
7029 1308 1627 Windstream Communications Inc
30036 1285 1322 Mediacom Communications Corp
11492 1108 1154 Cable One
7011 1058 1183 Citizens Utilities
1785 1052 1823 AppliedTheory Corporation
22773 939 1450 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:367 2:48 4:19 5:1 6:3 8:349
12:1951 13:1 14:533 15:13 16:3 17:5
20:10 23:31 24:1683 27:934 31:525 32:149
33:3 34:2 36:4 38:738 40:107 41:2500
42:40 44:3 46:961 47:3 49:235 50:408
52:13 54:2 55:4 56:2 57:45 58:865
59:495 60:376 61:1174 62:1091 63:1963 64:4077
65:2308 66:3975 67:1975 68:1291 69:3276 70:827
71:376 72:1883 73:1 74:2482 75:340 76:347
77:871 78:669 79:468 80:1128 81:843 82:504
83:499 84:690 85:1096 86:422 87:865 88:348
89:1554 90:231 91:4081 92:524 93:1150 94:1362
95:867 96:426 97:272 98:939 99:37 101:202
103:271 106:71 107:43 108:82 109:1033 110:671
111:748 112:311 113:434 114:567 115:705 116:950
117:683 118:889 119:1197 120:333 121:707 122:1607
123:1012 124:1348 125:1356 128:249 129:181 130:166
131:582 132:119 133:21 134:216 135:53 136:212
137:136 138:294 139:129 140:490 141:289 142:392
143:425 144:491 145:61 146:467 147:243 148:686
149:250 150:153 151:190 152:443 153:179 154:6
155:394 156:201 157:355 158:143 159:458 160:319
161:207 162:336 163:175 164:513 165:397 166:539
167:435 168:747 169:147 170:853 171:84 172:1
173:1672 174:637 175:397 176:159 177:255 178:1003
180:1021 181:26 182:612 183:230 184:351 185:1
186:1416 187:684 188:935 189:873 190:5141 192:5964
193:5016 194:3552 195:3074 196:1241 197:148 198:3599
199:4104 200:5523 201:1638 202:8543 203:8488 204:4251
205:2353 206:2737 207:2842 208:4146 209:3521 210:2714
211:1471 212:2133 213:1769 214:770 215:76 216:4914
217:1623 218:554 219:346 220:1199 221:516 222:353
223:256
End of report
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