Routing Table Report 00:00 GMT Tue 05 Jul, 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: 367872
Prefixes after maximum aggregation: 166022
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 179938
Total ASes present in the Internet Routing Table: 38108
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31726
Origin ASes announcing only one prefix: 15180
Transit ASes present in the Internet Routing Table: 5153
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 31
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3856
Unregistered ASNs in the Routing Table: 515
Number of 32-bit ASNs allocated by the RIRs: 1521
Number of 32-bit ASNs visible in the Routing Table: 1229
Prefixes from 32-bit ASNs in the Routing Table: 2862
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 138
Number of addresses announced to Internet: 2494239047
Equivalent to 148 /8s, 171 /16s and 17 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 153022
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88072
Total APNIC prefixes after maximum aggregation: 29132
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84935
Unique aggregates announced from the APNIC address blocks: 37077
APNIC Region origin ASes present in the Internet Routing Table: 4483
APNIC Prefixes per ASN: 18.95
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 712
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 53
Number of APNIC addresses announced to Internet: 621235905
Equivalent to 37 /8s, 7 /16s and 78 /24s
Percentage of available APNIC address space announced: 78.8
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: 144559
Total ARIN prefixes after maximum aggregation: 74752
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116197
Unique aggregates announced from the ARIN address blocks: 46648
ARIN Region origin ASes present in the Internet Routing Table: 14468
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5509
ARIN Region transit ASes present in the Internet Routing Table: 1492
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819653272
Equivalent to 48 /8s, 218 /16s and 234 /24s
Percentage of available ARIN address space announced: 65.1
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: 89710
Total RIPE prefixes after maximum aggregation: 49392
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82349
Unique aggregates announced from the RIPE address blocks: 52551
RIPE Region origin ASes present in the Internet Routing Table: 15792
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7823
RIPE Region transit ASes present in the Internet Routing Table: 2489
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 907
Number of RIPE addresses announced to Internet: 479507660
Equivalent to 28 /8s, 148 /16s and 180 /24s
Percentage of available RIPE address space announced: 77.2
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: 34004
Total LACNIC prefixes after maximum aggregation: 7632
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 33111
Unique aggregates announced from the LACNIC address blocks: 16967
LACNIC Region origin ASes present in the Internet Routing Table: 1479
LACNIC Prefixes per ASN: 22.39
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 271
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 252
Number of LACNIC addresses announced to Internet: 85781768
Equivalent to 5 /8s, 28 /16s and 237 /24s
Percentage of available LACNIC address space announced: 56.8
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: 1969
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6398
Unique aggregates announced from the AfriNIC address blocks: 2001
AfriNIC Region origin ASes present in the Internet Routing Table: 469
AfriNIC Prefixes per ASN: 13.64
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 101
Average AfriNIC Region AS path length visible: 4.1
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: 24288768
Equivalent to 1 /8s, 114 /16s and 158 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1909 9525 632 Korea Telecom (KIX)
17974 1836 468 42 PT TELEKOMUNIKASI INDONESIA
7545 1541 301 85 TPG Internet Pty Ltd
4755 1484 375 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9829 1098 914 45 BSNL National Internet Backbo
9583 1057 78 503 Sify Limited
4808 1023 2062 289 CNCGROUP IP network: China169
17488 977 186 103 Hathway IP Over Cable Interne
18101 932 116 139 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 3616 3819 249 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1805 681 122 AppliedTheory Corporation
4323 1657 1098 400 Time Warner Telecom
20115 1593 1533 632 Charter Communications
19262 1450 4806 371 Verizon Global Networks
7018 1375 7086 901 AT&T WorldNet Services
7029 1357 967 205 Windstream Communications Inc
22773 1348 2897 88 Cox Communications, Inc.
6478 1340 248 614 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
286 1043 798 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 537 106 182 Tellcom Iletisim Hizmetleri
3292 522 2080 404 TDC Tele Danmark
6830 514 1780 318 UPC Distribution Services
20940 469 137 361 Akamai Technologies European
8866 452 134 26 Bulgarian Telecommunication C
29049 440 33 45 AzerSat LLC.
12479 438 593 7 Uni2 Autonomous System
3320 420 8151 367 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 1541 282 157 TVCABLE BOGOTA
8151 1430 2724 357 Uninet S.A. de C.V.
28573 1273 996 80 Types of queries are: POCs, o
7303 1002 509 177 Telecom Argentina Stet-France
6503 758 354 75 AVANTEL, S.A.
14420 686 55 82 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 531 230 96 COLOMBIA TELECOMUNICACIONES S
27947 518 54 48 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
8452 776 445 11 TEDATA
24863 737 147 36 LINKdotNET AS number
15475 524 74 8 Nile Online
36992 315 415 14 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 219 12 8 Starcomms Nigeria Limited
24835 211 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 3616 3819 249 bellsouth.net, inc.
23456 2862 694 1525 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1909 9525 632 Korea Telecom (KIX)
17974 1836 468 42 PT TELEKOMUNIKASI INDONESIA
1785 1805 681 122 AppliedTheory Corporation
4323 1657 1098 400 Time Warner Telecom
20115 1593 1533 632 Charter Communications
7545 1541 301 85 TPG Internet Pty Ltd
10620 1541 282 157 TVCABLE BOGOTA
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 1836 1794 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1805 1683 AppliedTheory Corporation
7545 1541 1456 TPG Internet Pty Ltd
10620 1541 1384 TVCABLE BOGOTA
23456 2862 1337 >>UNKNOWN<<
4755 1484 1318 Videsh Sanchar Nigam Ltd. Aut
4766 1909 1277 Korea Telecom (KIX)
22773 1348 1260 Cox Communications, Inc.
4323 1657 1257 Time Warner Telecom
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.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 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 /8:22 /9:12 /10:28 /11:81 /12:231
/13:462 /14:809 /15:1425 /16:12104 /17:6127 /18:10102
/19:19974 /20:27007 /21:26634 /22:35029 /23:34088 /24:190743
/25:391 /26:357 /27:185 /28:354 /29:292 /30:706
/31:63 /32:646
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2224 3616 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1436 1541 TVCABLE BOGOTA
23456 1411 2862 >>UNKNOWN<<
6478 1311 1340 AT&T Worldnet Services
11492 1091 1137 Cable One
7029 1056 1357 Windstream Communications Inc
7011 1055 1156 Citizens Utilities
1785 1052 1805 AppliedTheory Corporation
286 903 1043 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:322 2:71 4:20 5:1 6:3 8:338
12:1978 13:1 14:472 15:15 16:3 17:8
20:10 23:13 24:1679 27:813 31:492 32:135
33:4 34:2 36:4 37:1 38:746 39:3
40:103 41:2536 42:31 44:3 46:1040 47:3
49:196 50:435 52:13 54:2 55:4 56:2
57:43 58:862 59:478 60:386 61:1178 62:1043
63:1954 64:3969 65:2304 66:3905 67:1931 68:1269
69:3143 70:802 71:388 72:1924 73:2 74:2437
75:325 76:349 77:926 78:718 79:481 80:1125
81:855 82:518 83:468 84:698 85:1088 86:554
87:778 88:341 89:1572 90:211 91:3946 92:539
93:1086 94:1368 95:874 96:448 97:255 98:905
99:36 101:77 103:104 106:10 107:19 108:80
109:1028 110:618 111:713 112:303 113:411 114:551
115:671 116:985 117:670 118:852 119:1154 120:309
121:687 122:1598 123:965 124:1300 125:1242 128:247
129:174 130:168 131:572 132:112 133:21 134:215
135:48 136:207 137:136 138:299 139:128 140:479
141:241 142:406 143:416 144:484 145:54 146:450
147:224 148:660 149:247 150:163 151:189 152:330
153:180 154:4 155:399 156:199 157:353 158:138
159:453 160:314 161:210 162:309 163:165 164:510
165:377 166:528 167:432 168:740 169:159 170:847
171:78 172:1 173:1651 174:617 175:379 176:144
177:163 178:1007 180:883 181:22 182:492 183:223
184:407 185:1 186:1260 187:726 188:896 189:944
190:4940 192:5927 193:4993 194:3557 195:3167 196:1249
197:41 198:3584 199:3971 200:5544 201:1499 202:8401
203:8394 204:4226 205:2348 206:2755 207:2815 208:3959
209:3469 210:2697 211:1460 212:2155 213:1789 214:769
215:69 216:4952 217:1647 218:547 219:364 220:1207
221:494 222:361 223:181
End of report
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