Routing Table Report 00:00 GMT Wed 01 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: 362979
Prefixes after maximum aggregation: 163435
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 177558
Total ASes present in the Internet Routing Table: 37761
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31598
Origin ASes announcing only one prefix: 15129
Transit ASes present in the Internet Routing Table: 5046
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 33
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 3416
Unregistered ASNs in the Routing Table: 397
Number of 32-bit ASNs allocated by the RIRs: 1401
Number of 32-bit ASNs visible in the Routing Table: 1117
Prefixes from 32-bit ASNs in the Routing Table: 2576
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 172
Number of addresses announced to Internet: 2441342183
Equivalent to 145 /8s, 131 /16s and 236 /24s
Percentage of available address space announced: 65.9
Percentage of allocated address space announced: 65.9
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: 150773
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87255
Total APNIC prefixes after maximum aggregation: 28940
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 83790
Unique aggregates announced from the APNIC address blocks: 36705
APNIC Region origin ASes present in the Internet Routing Table: 4459
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 688
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 618839809
Equivalent to 36 /8s, 226 /16s and 191 /24s
Percentage of available APNIC address space announced: 78.5
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: 143320
Total ARIN prefixes after maximum aggregation: 73339
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115337
Unique aggregates announced from the ARIN address blocks: 45833
ARIN Region origin ASes present in the Internet Routing Table: 14413
ARIN Prefixes per ASN: 8.00
ARIN Region origin ASes announcing only one prefix: 5487
ARIN Region transit ASes present in the Internet Routing Table: 1472
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: 801999896
Equivalent to 47 /8s, 205 /16s and 140 /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: 88215
Total RIPE prefixes after maximum aggregation: 48812
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 80831
Unique aggregates announced from the RIPE address blocks: 51836
RIPE Region origin ASes present in the Internet Routing Table: 15679
RIPE Prefixes per ASN: 5.16
RIPE Region origin ASes announcing only one prefix: 7791
RIPE Region transit ASes present in the Internet Routing Table: 2462
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 33
Number of RIPE region 32-bit ASNs visible in the Routing Table: 826
Number of RIPE addresses announced to Internet: 475264940
Equivalent to 28 /8s, 83 /16s and 247 /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: 33039
Total LACNIC prefixes after maximum aggregation: 7561
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 32178
Unique aggregates announced from the LACNIC address blocks: 16916
LACNIC Region origin ASes present in the Internet Routing Table: 1461
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 226
Number of LACNIC addresses announced to Internet: 84366600
Equivalent to 5 /8s, 7 /16s and 85 /24s
Percentage of available LACNIC address space announced: 55.9
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: 8272
Total AfriNIC prefixes after maximum aggregation: 1908
AfriNIC Deaggregation factor: 4.34
Prefixes being announced from the AfriNIC address blocks: 6426
Unique aggregates announced from the AfriNIC address blocks: 1921
AfriNIC Region origin ASes present in the Internet Routing Table: 457
AfriNIC Prefixes per ASN: 14.06
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 5
Number of AfriNIC addresses announced to Internet: 23549184
Equivalent to 1 /8s, 103 /16s and 85 /24s
Percentage of available AfriNIC address space announced: 35.1
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 1902 9492 618 Korea Telecom (KIX)
17974 1832 508 33 PT TELEKOMUNIKASI INDONESIA
7545 1538 301 87 TPG Internet Pty Ltd
4755 1472 634 168 Videsh Sanchar Nigam Ltd. Aut
24560 1155 337 187 Bharti Airtel Ltd.
7552 1138 1064 7 Vietel Corporation
9583 1077 80 509 Sify Limited
9829 1041 877 53 BSNL National Internet Backbo
17488 943 170 104 Hathway IP Over Cable Interne
18101 931 116 140 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 3642 3822 255 bellsouth.net, inc.
4323 1968 1081 398 Time Warner Telecom
18566 1919 363 270 Covad Communications
1785 1789 681 124 AppliedTheory Corporation
6478 1705 317 42 AT&T Worldnet Services
20115 1586 1543 633 Charter Communications
19262 1491 4920 307 Verizon Global Networks
7018 1370 7085 893 AT&T WorldNet Services
22773 1336 2897 87 Cox Communications, Inc.
11492 1280 240 15 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 1014 798 176 KPNQwest Backbone AS
9116 539 326 30 Goldenlines main autonomous s
6830 517 1780 319 UPC Distribution Services
3292 516 2078 397 TDC Tele Danmark
34984 516 106 178 Tellcom Iletisim Hizmetleri
20940 463 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 429 593 7 Uni2 Autonomous System
3320 426 8152 371 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 1503 275 158 TVCABLE BOGOTA
8151 1378 2691 361 Uninet S.A. de C.V.
28573 1308 992 86 Types of queries are: POCs, o
7303 959 504 153 Telecom Argentina Stet-France
6503 732 354 74 AVANTEL, S.A.
14420 671 54 89 Types of queries are: POCs, o
22047 565 310 15 Types of queries are: POCs, o
3816 526 229 96 COLOMBIA TELECOMUNICACIONES S
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 516 262 123 Orbitel S.A. E.S.P.
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 870 445 11 TEDATA
24863 784 147 37 LINKdotNET AS number
15475 541 90 8 Nile Online
36992 306 399 15 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 263 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 213 78 10 RAYA Telecom - Egypt
29571 192 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 3642 3822 255 bellsouth.net, inc.
23456 2576 636 1390 >>UNKNOWN<<
4323 1968 1081 398 Time Warner Telecom
18566 1919 363 270 Covad Communications
4766 1902 9492 618 Korea Telecom (KIX)
17974 1832 508 33 PT TELEKOMUNIKASI INDONESIA
1785 1789 681 124 AppliedTheory Corporation
6478 1705 317 42 AT&T Worldnet Services
20115 1586 1543 633 Charter Communications
7545 1538 301 87 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
17974 1832 1799 PT TELEKOMUNIKASI INDONESIA
1785 1789 1665 AppliedTheory Corporation
6478 1705 1663 AT&T Worldnet Services
18566 1919 1649 Covad Communications
4323 1968 1570 Time Warner Telecom
7545 1538 1451 TPG Internet Pty Ltd
10620 1503 1345 TVCABLE BOGOTA
4755 1472 1304 Videsh Sanchar Nigam Ltd. Aut
4766 1902 1284 Korea Telecom (KIX)
11492 1280 1265 Cable One
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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.
31.131.8.0/21 51962 ERDENI SRL
31.131.32.0/21 12700 SC-VEKTOR-AS
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 /12:227
/13:461 /14:804 /15:1426 /16:11923 /17:6087 /18:10070
/19:19849 /20:26462 /21:26371 /22:34562 /23:33656 /24:188618
/25:157 /26:129 /27:164 /28:288 /29:231 /30:664
/31:72 /32:617
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2242 3642 bellsouth.net, inc.
18566 1876 1919 Covad Communications
6478 1659 1705 AT&T Worldnet Services
10620 1393 1503 TVCABLE BOGOTA
23456 1256 2576 >>UNKNOWN<<
11492 1226 1280 Cable One
7011 1061 1160 Citizens Utilities
1785 1050 1789 AppliedTheory Corporation
4323 883 1968 Time Warner Telecom
286 874 1014 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:281 2:69 4:20 5:1 6:3 8:338
12:1981 13:1 14:463 15:15 16:3 17:8
20:10 23:6 24:1660 27:783 31:362 32:126
33:4 34:2 37:1 38:738 40:102 41:2579
42:6 44:3 46:936 47:3 49:198 50:424
52:13 54:2 55:6 56:2 57:39 58:846
59:482 60:387 61:1234 62:1057 63:1954 64:3975
65:2293 66:4173 67:1897 68:1259 69:3103 70:752
71:357 72:1927 73:3 74:2410 75:318 76:348
77:909 78:708 79:480 80:1097 81:842 82:511
83:459 84:696 85:1079 86:607 87:780 88:339
89:1574 90:203 91:3813 92:518 93:1075 94:1311
95:824 96:507 97:250 98:863 99:35 101:57
103:34 106:1 107:7 108:85 109:951 110:604
111:707 112:304 113:401 114:539 115:681 116:972
117:692 118:828 119:1134 120:310 121:672 122:1623
123:998 124:1265 125:1226 128:263 129:176 130:164
131:570 132:109 133:19 134:214 135:47 136:214
137:143 138:301 139:122 140:485 141:239 142:407
143:403 144:481 145:54 146:448 147:221 148:595
149:242 150:170 151:186 152:328 153:178 154:3
155:397 156:194 157:322 158:138 159:381 160:317
161:207 162:282 163:164 164:500 165:373 166:515
167:428 168:729 169:156 170:804 171:77 172:1
173:1574 174:553 175:372 176:130 177:148 178:998
180:852 181:18 182:454 183:210 184:368 185:1
186:1199 187:775 188:864 189:895 190:4840 192:5877
193:4925 194:3548 195:3130 196:1237 197:19 198:3602
199:3920 200:5546 201:1493 202:8297 203:8418 204:4179
205:2322 206:2755 207:2876 208:3977 209:3481 210:2728
211:1432 212:2043 213:1789 214:726 215:72 216:4928
217:1636 218:555 219:366 220:1206 221:492 222:342
223:149
End of report
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