Routing Table Report 00:00 GMT Fri 03 Jun, 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: 363382
Prefixes after maximum aggregation: 163624
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178061
Total ASes present in the Internet Routing Table: 37807
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31558
Origin ASes announcing only one prefix: 15129
Transit ASes present in the Internet Routing Table: 5121
Transit-only ASes present in the Internet Routing Table: 140
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 3479
Unregistered ASNs in the Routing Table: 415
Number of 32-bit ASNs allocated by the RIRs: 1419
Number of 32-bit ASNs visible in the Routing Table: 1128
Prefixes from 32-bit ASNs in the Routing Table: 2612
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 168
Number of addresses announced to Internet: 2451542887
Equivalent to 146 /8s, 31 /16s and 147 /24s
Percentage of available address space announced: 66.1
Percentage of allocated address space announced: 66.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 151415
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86724
Total APNIC prefixes after maximum aggregation: 28876
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 83286
Unique aggregates announced from the APNIC address blocks: 36620
APNIC Region origin ASes present in the Internet Routing Table: 4461
APNIC Prefixes per ASN: 18.67
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 695
Average APNIC Region AS path length visible: 5.6
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 619596481
Equivalent to 36 /8s, 238 /16s and 74 /24s
Percentage of available APNIC address space announced: 78.6
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: 143763
Total ARIN prefixes after maximum aggregation: 73494
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115573
Unique aggregates announced from the ARIN address blocks: 46129
ARIN Region origin ASes present in the Internet Routing Table: 14423
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5488
ARIN Region transit ASes present in the Internet Routing Table: 1519
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 802009368
Equivalent to 47 /8s, 205 /16s and 177 /24s
Percentage of available ARIN address space announced: 63.7
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: 88388
Total RIPE prefixes after maximum aggregation: 48865
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81045
Unique aggregates announced from the RIPE address blocks: 51956
RIPE Region origin ASes present in the Internet Routing Table: 15687
RIPE Prefixes per ASN: 5.17
RIPE Region origin ASes announcing only one prefix: 7796
RIPE Region transit ASes present in the Internet Routing Table: 2474
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 834
Number of RIPE addresses announced to Internet: 475579628
Equivalent to 28 /8s, 88 /16s and 196 /24s
Percentage of available RIPE address space announced: 76.6
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: 33303
Total LACNIC prefixes after maximum aggregation: 7572
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32391
Unique aggregates announced from the LACNIC address blocks: 16962
LACNIC Region origin ASes present in the Internet Routing Table: 1462
LACNIC Prefixes per ASN: 22.16
LACNIC Region origin ASes announcing only one prefix: 432
LACNIC Region transit ASes present in the Internet Routing Table: 264
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 230
Number of LACNIC addresses announced to Internet: 84642056
Equivalent to 5 /8s, 11 /16s and 137 /24s
Percentage of available LACNIC address space announced: 56.1
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: 8268
Total AfriNIC prefixes after maximum aggregation: 1911
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 6343
Unique aggregates announced from the AfriNIC address blocks: 1887
AfriNIC Region origin ASes present in the Internet Routing Table: 455
AfriNIC Prefixes per ASN: 13.94
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23511296
Equivalent to 1 /8s, 102 /16s and 193 /24s
Percentage of available AfriNIC address space announced: 35.0
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 1901 9492 618 Korea Telecom (KIX)
7545 1537 301 87 TPG Internet Pty Ltd
17974 1536 441 38 PT TELEKOMUNIKASI INDONESIA
4755 1469 374 165 Videsh Sanchar Nigam Ltd. Aut
24560 1155 337 187 Bharti Airtel Ltd.
7552 1138 1064 7 Vietel Corporation
9583 1078 80 509 Sify Limited
9829 1042 879 55 BSNL National Internet Backbo
17488 945 170 104 Hathway IP Over Cable Interne
18101 931 116 139 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 3643 3822 256 bellsouth.net, inc.
4323 1970 1081 399 Time Warner Telecom
18566 1919 363 266 Covad Communications
1785 1788 681 122 AppliedTheory Corporation
6478 1714 318 43 AT&T Worldnet Services
20115 1586 1543 633 Charter Communications
19262 1492 4920 307 Verizon Global Networks
7018 1373 6957 898 AT&T WorldNet Services
22773 1338 2897 88 Cox Communications, Inc.
11492 1274 237 59 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 1033 798 180 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
6830 519 1780 321 UPC Distribution Services
3292 516 2078 397 TDC Tele Danmark
34984 516 106 180 Tellcom Iletisim Hizmetleri
20940 461 135 352 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 444 133 25 Bulgarian Telecommunication C
12479 429 593 7 Uni2 Autonomous System
3320 425 8152 370 Deutsche Telekom AG
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 1512 278 157 TVCABLE BOGOTA
8151 1381 2720 362 Uninet S.A. de C.V.
28573 1320 992 86 Types of queries are: POCs, o
7303 958 504 152 Telecom Argentina Stet-France
6503 735 354 73 AVANTEL, S.A.
14420 674 54 88 Types of queries are: POCs, o
22047 565 310 15 Types of queries are: POCs, o
3816 527 231 93 COLOMBIA TELECOMUNICACIONES S
13489 517 262 124 Orbitel S.A. E.S.P.
7738 516 986 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
8452 833 445 11 TEDATA
24863 792 147 37 LINKdotNET AS number
15475 545 90 8 Nile Online
16637 296 441 87 Johnnic e-Ventures
36992 295 399 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 212 78 10 RAYA Telecom - Egypt
29571 193 17 12 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 3643 3822 256 bellsouth.net, inc.
23456 2612 642 1405 >>UNKNOWN<<
4323 1970 1081 399 Time Warner Telecom
18566 1919 363 266 Covad Communications
4766 1901 9492 618 Korea Telecom (KIX)
1785 1788 681 122 AppliedTheory Corporation
6478 1714 318 43 AT&T Worldnet Services
20115 1586 1543 633 Charter Communications
7545 1537 301 87 TPG Internet Pty Ltd
17974 1536 441 38 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1714 1671 AT&T Worldnet Services
1785 1788 1666 AppliedTheory Corporation
18566 1919 1653 Covad Communications
4323 1970 1571 Time Warner Telecom
17974 1536 1498 PT TELEKOMUNIKASI INDONESIA
7545 1537 1450 TPG Internet Pty Ltd
10620 1512 1355 TVCABLE BOGOTA
4755 1469 1304 Videsh Sanchar Nigam Ltd. Aut
4766 1901 1283 Korea Telecom (KIX)
22773 1338 1250 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 4323 Time Warner Telecom
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
27.0.128.0/17 7514 Media Exchange, Inc.
31.131.64.0/20 43936 PE Zinstein Hariton Vladimiro
31.131.96.0/19 41871 LLC "Radiotechichna Laborator
41.190.32.0/23 31856 CABSAS
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 /10:28 /11:81 /12:228
/13:461 /14:803 /15:1422 /16:12025 /17:6091 /18:10060
/19:19849 /20:26501 /21:26376 /22:34537 /23:33642 /24:188374
/25:372 /26:354 /27:179 /28:302 /29:280 /30:682
/31:75 /32:628
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2244 3643 bellsouth.net, inc.
18566 1876 1919 Covad Communications
6478 1668 1714 AT&T Worldnet Services
10620 1402 1512 TVCABLE BOGOTA
23456 1282 2612 >>UNKNOWN<<
11492 1228 1274 Cable One
7011 1061 1160 Citizens Utilities
1785 1050 1788 AppliedTheory Corporation
286 894 1033 KPNQwest Backbone AS
4323 884 1970 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:282 2:68 4:20 5:1 6:3 8:338
12:1983 13:1 14:463 15:15 16:3 17:8
20:10 23:6 24:1662 27:775 31:421 32:126
33:4 34:2 37:1 38:740 40:102 41:2532
42:6 44:3 46:936 47:3 49:200 50:431
52:13 54:2 55:7 56:2 57:39 58:841
59:482 60:387 61:1134 62:1063 63:1948 64:3968
65:2294 66:4146 67:1895 68:1269 69:3096 70:751
71:356 72:1928 73:3 74:2410 75:319 76:349
77:911 78:705 79:483 80:1089 81:844 82:513
83:459 84:695 85:1082 86:608 87:779 88:337
89:1571 90:203 91:3818 92:523 93:1075 94:1300
95:821 96:506 97:250 98:865 99:35 101:61
103:42 106:1 107:7 108:85 109:964 110:599
111:707 112:301 113:400 114:537 115:682 116:973
117:693 118:797 119:1144 120:310 121:673 122:1594
123:974 124:1270 125:1217 128:262 129:176 130:164
131:571 132:108 133:19 134:214 135:48 136:212
137:144 138:301 139:121 140:481 141:239 142:407
143:403 144:486 145:54 146:448 147:221 148:595
149:244 150:170 151:185 152:328 153:179 154:3
155:397 156:195 157:353 158:138 159:380 160:317
161:207 162:280 163:165 164:500 165:372 166:517
167:428 168:728 169:156 170:802 171:77 172:1
173:1577 174:553 175:363 176:130 177:151 178:970
180:859 181:17 182:457 183:212 184:374 185:1
186:1217 187:775 188:868 189:894 190:4862 192:5880
193:4924 194:3549 195:3128 196:1242 197:19 198:3586
199:3924 200:5548 201:1486 202:8254 203:8365 204:4182
205:2319 206:2763 207:2881 208:3983 209:3490 210:2728
211:1398 212:2043 213:1783 214:728 215:71 216:4952
217:1638 218:552 219:367 220:1207 221:492 222:315
223:151
End of report
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