Routing Table Report 00:00 GMT Mon 28 Feb, 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: 352688
Prefixes after maximum aggregation: 158508
Deaggregation factor: 2.23
Unique aggregates announced to Internet: 171932
Total ASes present in the Internet Routing Table: 35988
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 31058
Origin ASes announcing only one prefix: 14910
Transit ASes present in the Internet Routing Table: 4930
Transit-only ASes present in the Internet Routing Table: 118
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 419
Unregistered ASNs in the Routing Table: 175
Number of 32-bit ASNs allocated by the RIRs: 1155
Prefixes from 32-bit ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 206
Number of addresses announced to Internet: 2366629310
Equivalent to 141 /8s, 15 /16s and 229 /24s
Percentage of available address space announced: 63.9
Percentage of allocated address space announced: 63.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.1
Total number of prefixes smaller than registry allocations: 145796
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84712
Total APNIC prefixes after maximum aggregation: 28448
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 81643
Unique aggregates announced from the APNIC address blocks: 35950
APNIC Region origin ASes present in the Internet Routing Table: 4329
APNIC Prefixes per ASN: 18.86
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 675
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 592172738
Equivalent to 35 /8s, 75 /16s and 214 /24s
Percentage of available APNIC address space announced: 75.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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: 142581
Total ARIN prefixes after maximum aggregation: 73603
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112983
Unique aggregates announced from the ARIN address blocks: 44978
ARIN Region origin ASes present in the Internet Routing Table: 14238
ARIN Prefixes per ASN: 7.94
ARIN Region origin ASes announcing only one prefix: 5389
ARIN Region transit ASes present in the Internet Routing Table: 1463
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 787550361
Equivalent to 46 /8s, 241 /16s and 16 /24s
Percentage of available ARIN address space announced: 62.6
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: 85851
Total RIPE prefixes after maximum aggregation: 47119
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 78334
Unique aggregates announced from the RIPE address blocks: 49323
RIPE Region origin ASes present in the Internet Routing Table: 15374
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7731
RIPE Region transit ASes present in the Internet Routing Table: 2366
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 461125436
Equivalent to 27 /8s, 124 /16s and 55 /24s
Percentage of available RIPE address space announced: 74.3
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: 31947
Total LACNIC prefixes after maximum aggregation: 7406
LACNIC Deaggregation factor: 4.31
Prefixes being announced from the LACNIC address blocks: 30759
Unique aggregates announced from the LACNIC address blocks: 15935
LACNIC Region origin ASes present in the Internet Routing Table: 1438
LACNIC Prefixes per ASN: 21.39
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 80971660
Equivalent to 4 /8s, 211 /16s and 135 /24s
Percentage of available LACNIC address space announced: 53.6
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: 7342
Total AfriNIC prefixes after maximum aggregation: 1821
AfriNIC Deaggregation factor: 4.03
Prefixes being announced from the AfriNIC address blocks: 5750
Unique aggregates announced from the AfriNIC address blocks: 1830
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 13.28
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21884928
Equivalent to 1 /8s, 77 /16s and 240 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1862 9493 585 Korea Telecom (KIX)
7545 1592 302 86 TPG Internet Pty Ltd
4755 1422 633 164 Videsh Sanchar Nigam Ltd. Aut
17974 1406 475 29 PT TELEKOMUNIKASI INDONESIA
24560 1115 323 184 Bharti Airtel Ltd.
9583 1045 77 488 Sify Limited
4808 988 2072 282 CNCGROUP IP network: China169
17488 955 161 102 Hathway IP Over Cable Interne
18101 931 117 139 Reliance Infocom Ltd Internet
9829 895 761 45 BSNL National Internet Backbo
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 3688 3855 260 bellsouth.net, inc.
4323 2602 1109 403 Time Warner Telecom
1785 1787 697 132 AppliedTheory Corporation
19262 1786 4938 284 Verizon Global Networks
20115 1578 1538 647 Charter Communications
6478 1517 296 112 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
7018 1368 6730 890 AT&T WorldNet Services
2386 1296 538 939 AT&T Data Communications Serv
11492 1285 236 70 Cable One
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
286 993 761 160 KPNQwest Backbone AS
9116 545 328 32 Goldenlines main autonomous s
6830 515 1780 319 UPC Distribution Services
3292 501 1996 389 TDC Tele Danmark
9198 470 267 15 Kazakhtelecom Corporate Sales
34984 465 98 145 Tellcom Iletisim Hizmetleri
8866 443 133 23 Bulgarian Telecommunication C
20940 415 97 320 Akamai Technologies European
3320 409 7604 356 Deutsche Telekom AG
8551 405 355 38 Bezeq International
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 1383 257 166 TVCABLE BOGOTA
8151 1339 2668 359 Uninet S.A. de C.V.
28573 1232 961 82 Types of queries are: POCs, o
6503 1173 354 73 AVANTEL, S.A.
7303 906 463 144 Telecom Argentina Stet-France
14420 641 57 94 Types of queries are: POCs, o
22047 543 310 15 Types of queries are: POCs, o
3816 509 221 101 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 467 53 50 Telconet 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 691 147 39 LINKdotNET AS number
8452 640 445 11 TEDATA
15475 476 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 264 987 226 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 159 439 88 Johnnic e-Ventures
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 3688 3855 260 bellsouth.net, inc.
4323 2602 1109 403 Time Warner Telecom
4766 1862 9493 585 Korea Telecom (KIX)
1785 1787 697 132 AppliedTheory Corporation
19262 1786 4938 284 Verizon Global Networks
7545 1592 302 86 TPG Internet Pty Ltd
20115 1578 1538 647 Charter Communications
6478 1517 296 112 AT&T Worldnet Services
18566 1447 321 156 Covad Communications
4755 1422 633 164 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2602 2199 Time Warner Telecom
1785 1787 1655 AppliedTheory Corporation
7545 1592 1506 TPG Internet Pty Ltd
19262 1786 1502 Verizon Global Networks
6478 1517 1405 AT&T Worldnet Services
17974 1406 1377 PT TELEKOMUNIKASI INDONESIA
18566 1447 1291 Covad Communications
4766 1862 1277 Korea Telecom (KIX)
4755 1422 1258 Videsh Sanchar Nigam Ltd. Aut
10620 1383 1217 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 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
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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /9:10 /10:26 /11:73 /12:216
/13:444 /14:770 /15:1397 /16:11643 /17:5898 /18:9643
/19:19396 /20:25099 /21:25363 /22:33688 /23:32239 /24:183600
/25:397 /26:376 /27:213 /28:382 /29:341 /30:739
/31:48 /32:667
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2275 3688 bellsouth.net, inc.
6478 1471 1517 AT&T Worldnet Services
18566 1425 1447 Covad Communications
4323 1403 2602 Time Warner Telecom
10620 1274 1383 TVCABLE BOGOTA
11492 1242 1285 Cable One
7011 1056 1157 Citizens Utilities
1785 1054 1787 AppliedTheory Corporation
6503 955 1173 AVANTEL, S.A.
19262 899 1786 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:259 2:62 4:17 5:1 8:339 12:2031
13:1 14:413 15:15 16:3 17:8 20:9
23:1 24:1509 27:592 32:120 33:4 34:2
37:1 38:706 40:101 41:2237 44:3 46:645
47:4 49:153 50:96 52:12 55:2 56:2
57:42 58:865 59:477 60:384 61:1111 62:1067
63:1933 64:3871 65:2368 66:4266 67:1809 68:1200
69:2973 70:771 71:404 72:2023 73:3 74:2402
75:305 76:355 77:880 78:700 79:458 80:1080
81:819 82:534 83:483 84:647 85:1067 86:580
87:780 88:360 89:1609 90:157 91:3547 92:496
93:1057 94:1235 95:785 96:455 97:250 98:789
99:33 101:35 107:4 108:117 109:937 110:476
111:719 112:315 113:371 114:499 115:650 116:961
117:682 118:685 119:1027 120:251 121:696 122:1617
123:1059 124:1312 125:1260 128:267 129:159 130:173
131:561 132:108 133:20 134:221 135:49 136:215
137:146 138:295 139:126 140:490 141:203 142:356
143:384 144:488 145:51 146:439 147:211 148:631
149:263 150:168 151:230 152:297 153:180 154:3
155:377 156:176 157:345 158:128 159:382 160:315
161:208 162:277 163:156 164:487 165:359 166:503
167:410 168:738 169:160 170:756 171:69 172:2
173:1235 174:506 175:320 176:1 177:23 178:776
180:815 181:2 182:367 183:241 184:278 186:1023
187:826 188:901 189:1051 190:4433 192:5802 193:4825
194:3564 195:3103 196:1207 197:3 198:3600 199:3844
200:5603 201:1592 202:8452 203:8472 204:4090 205:2308
206:2659 207:3074 208:3940 209:3479 210:2649 211:1349
212:1990 213:1793 214:749 215:63 216:4881 217:1658
218:551 219:367 220:1206 221:453 222:339 223:104
End of report
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