Routing Table Report 00:00 GMT Wed 26 Oct, 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: 384285
Prefixes after maximum aggregation: 167284
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 185904
Total ASes present in the Internet Routing Table: 39172
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 32472
Origin ASes announcing only one prefix: 15511
Transit ASes present in the Internet Routing Table: 5141
Transit-only ASes present in the Internet Routing Table: 132
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5117
Unregistered ASNs in the Routing Table: 842
Number of 32-bit ASNs allocated by the RIRs: 1889
Number of 32-bit ASNs visible in the Routing Table: 1559
Prefixes from 32-bit ASNs in the Routing Table: 3570
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2488430090
Equivalent to 148 /8s, 82 /16s and 110 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 161242
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92666
Total APNIC prefixes after maximum aggregation: 29821
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 89213
Unique aggregates announced from the APNIC address blocks: 37958
APNIC Region origin ASes present in the Internet Routing Table: 4573
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1275
APNIC Region transit ASes present in the Internet Routing Table: 700
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 97
Number of APNIC addresses announced to Internet: 629371648
Equivalent to 37 /8s, 131 /16s and 115 /24s
Percentage of available APNIC address space announced: 79.8
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: 148382
Total ARIN prefixes after maximum aggregation: 76558
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120057
Unique aggregates announced from the ARIN address blocks: 48127
ARIN Region origin ASes present in the Internet Routing Table: 14751
ARIN Prefixes per ASN: 8.14
ARIN Region origin ASes announcing only one prefix: 5653
ARIN Region transit ASes present in the Internet Routing Table: 1514
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804754200
Equivalent to 47 /8s, 247 /16s and 147 /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: 94944
Total RIPE prefixes after maximum aggregation: 50870
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 86708
Unique aggregates announced from the RIPE address blocks: 54242
RIPE Region origin ASes present in the Internet Routing Table: 16075
RIPE Prefixes per ASN: 5.39
RIPE Region origin ASes announcing only one prefix: 7975
RIPE Region transit ASes present in the Internet Routing Table: 2483
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 20
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1095
Number of RIPE addresses announced to Internet: 491468484
Equivalent to 29 /8s, 75 /16s and 54 /24s
Percentage of available RIPE address space announced: 79.2
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: 35971
Total LACNIC prefixes after maximum aggregation: 7924
LACNIC Deaggregation factor: 4.54
Prefixes being announced from the LACNIC address blocks: 35316
Unique aggregates announced from the LACNIC address blocks: 18087
LACNIC Region origin ASes present in the Internet Routing Table: 1541
LACNIC Prefixes per ASN: 22.92
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 272
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: 351
Number of LACNIC addresses announced to Internet: 91670792
Equivalent to 5 /8s, 118 /16s and 201 /24s
Percentage of available LACNIC address space announced: 60.7
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: 8562
Total AfriNIC prefixes after maximum aggregation: 2033
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6626
Unique aggregates announced from the AfriNIC address blocks: 1990
AfriNIC Region origin ASes present in the Internet Routing Table: 496
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 3.8
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: 27917568
Equivalent to 1 /8s, 169 /16s and 253 /24s
Percentage of available AfriNIC address space announced: 41.6
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
4766 1941 11104 659 Korea Telecom (KIX)
17974 1877 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1597 303 86 TPG Internet Pty Ltd
4755 1537 637 172 Videsh Sanchar Nigam Ltd. Aut
7552 1390 1064 8 Vietel Corporation
9829 1165 989 28 BSNL National Internet Backbo
9583 1091 80 499 Sify Limited
4808 1069 2089 307 CNCGROUP IP network: China169
24560 964 342 218 Bharti Airtel Ltd.
18101 953 166 150 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 3542 3814 222 bellsouth.net, inc.
7029 2357 1042 210 Windstream Communications Inc
18566 2098 383 177 Covad Communications
1785 1842 680 123 AppliedTheory Corporation
4323 1623 1093 388 Time Warner Telecom
20115 1594 1546 619 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
30036 1396 253 671 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1317 7046 866 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
3352 2193 2317 51 Internet Access Network of TD
8402 1513 352 13 Corbina telecom
286 1085 809 196 KPNQwest Backbone AS
6830 654 1927 415 UPC Distribution Services
34984 590 108 180 Tellcom Iletisim Hizmetleri
20940 556 186 427 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 535 2080 411 TDC Tele Danmark
3320 503 8169 383 Deutsche Telekom AG
12479 481 595 8 Uni2 Autonomous System
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 1694 313 155 TVCABLE BOGOTA
8151 1474 2895 353 Uninet S.A. de C.V.
28573 1454 1032 69 Types of queries are: POCs, o
7303 1229 747 177 Telecom Argentina Stet-France
27947 601 72 85 Telconet S.A
6503 582 450 71 AVANTEL, S.A.
22047 580 322 17 Types of queries are: POCs, o
7738 552 1050 31 Telecomunicacoes da Bahia S.A
10481 548 430 20 Prima S.A.
3816 542 233 95 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 802 146 34 LINKdotNET AS number
8452 634 446 12 TEDATA
15475 454 74 8 Nile Online
36992 298 415 21 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 218 17 13 Ci Telecom Autonomous system
33776 199 12 16 Starcomms Nigeria Limited
12258 197 28 58 YEBO-AS
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 3542 3814 222 bellsouth.net, inc.
7029 2357 1042 210 Windstream Communications Inc
3352 2193 2317 51 Internet Access Network of TD
18566 2098 383 177 Covad Communications
4766 1941 11104 659 Korea Telecom (KIX)
17974 1877 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1842 680 123 AppliedTheory Corporation
10620 1694 313 155 TVCABLE BOGOTA
4323 1623 1093 388 Time Warner Telecom
7545 1597 303 86 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2357 2147 Windstream Communications Inc
3352 2193 2142 Internet Access Network of TD
18566 2098 1921 Covad Communications
17974 1877 1844 PT TELEKOMUNIKASI INDONESIA
1785 1842 1719 AppliedTheory Corporation
10620 1694 1539 TVCABLE BOGOTA
7545 1597 1511 TPG Internet Pty Ltd
8402 1513 1500 Corbina telecom
28573 1454 1385 Types of queries are: POCs, o
7552 1390 1382 Vietel Corporation
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 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 /12:236
/13:464 /14:813 /15:1458 /16:12139 /17:6328 /18:10409
/19:20502 /20:28677 /21:28055 /22:37735 /23:36415 /24:199233
/25:67 /26:85 /27:114 /28:283 /29:110 /30:487
/31:53 /32:482
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2182 3542 bellsouth.net, inc.
18566 2047 2098 Covad Communications
7029 2011 2357 Windstream Communications Inc
3352 1742 2193 Internet Access Network of TD
10620 1589 1694 TVCABLE BOGOTA
8402 1490 1513 Corbina telecom
30036 1357 1396 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1057 1842 AppliedTheory Corporation
7011 1050 1168 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:412 2:488 4:19 5:1 6:3 8:362
12:1960 13:1 14:534 15:11 16:3 17:7
20:9 23:58 24:1676 27:965 31:613 32:150
33:4 34:2 36:4 38:756 39:1 40:110
41:2673 42:54 44:3 46:1009 47:3 49:291
50:443 52:13 55:6 56:2 57:49 58:893
59:494 60:364 61:1177 62:1088 63:1977 64:4076
65:2314 66:4311 67:2022 68:1328 69:3299 70:939
71:379 72:1831 73:1 74:2614 75:404 76:328
77:885 78:874 79:459 80:1594 81:960 82:512
83:581 84:628 85:1126 86:411 87:897 88:424
89:1619 90:237 91:4235 92:532 93:1543 94:1313
95:1095 96:437 97:284 98:931 99:37 101:220
103:398 106:70 107:75 108:76 109:1055 110:668
111:792 112:332 113:485 114:617 115:704 116:909
117:720 118:914 119:1262 120:339 121:712 122:1566
123:1021 124:1357 125:1360 128:244 129:187 130:166
131:591 132:146 133:21 134:219 135:54 136:213
137:140 138:284 139:136 140:485 141:300 142:392
143:427 144:492 145:64 146:476 147:233 148:693
149:267 150:166 151:192 152:447 153:178 154:7
155:388 156:208 157:363 158:153 159:481 160:326
161:214 162:340 163:173 164:510 165:388 166:535
167:438 168:742 169:147 170:872 171:86 172:4
173:1725 174:690 175:432 176:289 177:353 178:1073
180:1104 181:36 182:657 183:216 184:374 185:1
186:1302 187:708 188:942 189:872 190:5131 192:5955
193:5056 194:3587 195:3123 196:1265 197:162 198:3637
199:4184 200:5526 201:1688 202:8572 203:8489 204:4302
205:2366 206:2694 207:2835 208:4035 209:3605 210:2728
211:1464 212:2124 213:1810 214:790 215:94 216:4940
217:1618 218:567 219:344 220:1245 221:517 222:347
223:271
End of report