Routing Table Report 00:00 GMT Thu 30 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: 367530
Prefixes after maximum aggregation: 165856
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 179758
Total ASes present in the Internet Routing Table: 38088
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31721
Origin ASes announcing only one prefix: 15183
Transit ASes present in the Internet Routing Table: 5157
Transit-only ASes present in the Internet Routing Table: 136
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 29
Max AS path prepend of ASN (22394) 23
Prefixes from unregistered ASNs in the Routing Table: 3748
Unregistered ASNs in the Routing Table: 497
Number of 32-bit ASNs allocated by the RIRs: 1506
Number of 32-bit ASNs visible in the Routing Table: 1210
Prefixes from 32-bit ASNs in the Routing Table: 2781
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2493481279
Equivalent to 148 /8s, 159 /16s and 129 /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: 152797
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88057
Total APNIC prefixes after maximum aggregation: 29122
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84898
Unique aggregates announced from the APNIC address blocks: 37114
APNIC Region origin ASes present in the Internet Routing Table: 4486
APNIC Prefixes per ASN: 18.93
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 712
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 52
Number of APNIC addresses announced to Internet: 621121217
Equivalent to 37 /8s, 5 /16s and 142 /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: 144473
Total ARIN prefixes after maximum aggregation: 74693
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116153
Unique aggregates announced from the ARIN address blocks: 46615
ARIN Region origin ASes present in the Internet Routing Table: 14471
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5519
ARIN Region transit ASes present in the Internet Routing Table: 1492
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819829648
Equivalent to 48 /8s, 221 /16s and 155 /24s
Percentage of available ARIN address space announced: 65.2
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: 89558
Total RIPE prefixes after maximum aggregation: 49368
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82205
Unique aggregates announced from the RIPE address blocks: 52484
RIPE Region origin ASes present in the Internet Routing Table: 15803
RIPE Prefixes per ASN: 5.20
RIPE Region origin ASes announcing only one prefix: 7826
RIPE Region transit ASes present in the Internet Routing Table: 2495
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 893
Number of RIPE addresses announced to Internet: 479205068
Equivalent to 28 /8s, 144 /16s and 22 /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: 33952
Total LACNIC prefixes after maximum aggregation: 7604
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33017
Unique aggregates announced from the LACNIC address blocks: 16967
LACNIC Region origin ASes present in the Internet Routing Table: 1467
LACNIC Prefixes per ASN: 22.51
LACNIC Region origin ASes announcing only one prefix: 436
LACNIC Region transit ASes present in the Internet Routing Table: 268
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 248
Number of LACNIC addresses announced to Internet: 85696008
Equivalent to 5 /8s, 27 /16s and 158 /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: 8416
Total AfriNIC prefixes after maximum aggregation: 1975
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6484
Unique aggregates announced from the AfriNIC address blocks: 1974
AfriNIC Region origin ASes present in the Internet Routing Table: 465
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: 105
Average AfriNIC Region AS path length visible: 3.9
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: 24279040
Equivalent to 1 /8s, 114 /16s and 120 /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 1903 9492 625 Korea Telecom (KIX)
17974 1828 469 43 PT TELEKOMUNIKASI INDONESIA
7545 1542 301 85 TPG Internet Pty Ltd
4755 1488 375 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9583 1054 77 504 Sify Limited
9829 1053 888 54 BSNL National Internet Backbo
4808 1025 2083 294 CNCGROUP IP network: China169
17488 974 186 105 Hathway IP Over Cable Interne
18101 933 116 140 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 3621 3819 246 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1798 681 121 AppliedTheory Corporation
4323 1656 1098 400 Time Warner Telecom
20115 1587 1531 634 Charter Communications
19262 1451 4804 373 Verizon Global Networks
7029 1388 979 209 Windstream Communications Inc
7018 1380 7086 905 AT&T WorldNet Services
6478 1375 251 594 AT&T Worldnet Services
22773 1346 2897 87 Cox Communications, Inc.
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 798 192 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 523 2080 405 TDC Tele Danmark
6830 514 1780 318 UPC Distribution Services
20940 473 138 364 Akamai Technologies European
8866 452 134 26 Bulgarian Telecommunication C
29049 444 33 45 AzerSat LLC.
12479 440 593 7 Uni2 Autonomous System
35819 431 79 14 Bayanat Al-Oula Autonomous Sy
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 1536 282 157 TVCABLE BOGOTA
8151 1435 2724 363 Uninet S.A. de C.V.
28573 1265 993 78 Types of queries are: POCs, o
7303 992 507 171 Telecom Argentina Stet-France
6503 753 354 75 AVANTEL, S.A.
14420 685 55 81 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 536 232 91 COLOMBIA TELECOMUNICACIONES S
27947 524 54 52 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 798 147 37 LINKdotNET AS number
8452 789 445 11 TEDATA
15475 524 74 8 Nile Online
36992 315 415 14 Etisalat MISR
16637 295 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 211 78 10 RAYA Telecom - Egypt
33776 208 12 10 Starcomms Nigeria Limited
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 3621 3819 246 bellsouth.net, inc.
23456 2781 684 1500 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1903 9492 625 Korea Telecom (KIX)
17974 1828 469 43 PT TELEKOMUNIKASI INDONESIA
1785 1798 681 121 AppliedTheory Corporation
4323 1656 1098 400 Time Warner Telecom
20115 1587 1531 634 Charter Communications
7545 1542 301 85 TPG Internet Pty Ltd
10620 1536 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 1828 1785 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1798 1677 AppliedTheory Corporation
7545 1542 1457 TPG Internet Pty Ltd
10620 1536 1379 TVCABLE BOGOTA
4755 1488 1322 Videsh Sanchar Nigam Ltd. Aut
23456 2781 1281 >>UNKNOWN<<
4766 1903 1278 Korea Telecom (KIX)
22773 1346 1259 Cox Communications, Inc.
4323 1656 1256 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 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
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.
41.190.52.0/23 30844 Econet Carrier Services AS Nu
41.190.54.0/23 36959 AfriConnect Zambia Ltd
41.190.60.0/23 30844 Econet Carrier Services AS Nu
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 /14:808 /15:1427 /16:12094 /17:6128 /18:10050
/19:19971 /20:26981 /21:26584 /22:34983 /23:34067 /24:190628
/25:386 /26:356 /27:185 /28:357 /29:284 /30:696
/31:67 /32:642
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2226 3621 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1431 1536 TVCABLE BOGOTA
23456 1357 2781 >>UNKNOWN<<
6478 1346 1375 AT&T Worldnet Services
11492 1090 1136 Cable One
7029 1083 1388 Windstream Communications Inc
7011 1056 1157 Citizens Utilities
1785 1050 1798 AppliedTheory Corporation
286 901 1043 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:320 2:69 4:20 5:1 6:3 8:338
12:1979 13:1 14:467 15:15 16:3 17:8
20:10 23:12 24:1672 27:806 31:487 32:135
33:4 34:2 36:4 37:1 38:741 39:3
40:103 41:2547 42:10 44:3 46:995 47:3
49:196 50:431 52:13 54:2 55:2 56:2
57:43 58:862 59:478 60:386 61:1183 62:1061
63:1952 64:3973 65:2294 66:3907 67:1937 68:1272
69:3140 70:802 71:392 72:1923 73:2 74:2435
75:332 76:348 77:924 78:718 79:483 80:1129
81:852 82:514 83:467 84:698 85:1096 86:571
87:776 88:341 89:1570 90:210 91:3913 92:536
93:1084 94:1349 95:871 96:443 97:254 98:907
99:36 101:77 103:94 106:10 107:19 108:80
109:1023 110:619 111:713 112:304 113:411 114:549
115:667 116:981 117:671 118:858 119:1151 120:307
121:691 122:1615 123:962 124:1298 125:1241 128:247
129:166 130:168 131:575 132:112 133:21 134:215
135:48 136:215 137:136 138:298 139:128 140:480
141:239 142:406 143:416 144:482 145:54 146:450
147:225 148:658 149:247 150:165 151:191 152:332
153:180 154:4 155:398 156:195 157:352 158:138
159:452 160:314 161:210 162:310 163:165 164:504
165:372 166:536 167:431 168:739 169:159 170:841
171:78 172:1 173:1651 174:609 175:372 176:142
177:159 178:1002 180:900 181:20 182:491 183:224
184:390 185:1 186:1242 187:738 188:898 189:916
190:4949 192:5918 193:5000 194:3555 195:3165 196:1207
197:41 198:3598 199:3969 200:5563 201:1506 202:8400
203:8431 204:4230 205:2361 206:2756 207:2819 208:3969
209:3483 210:2694 211:1459 212:2154 213:1787 214:769
215:70 216:4950 217:1649 218:549 219:365 220:1207
221:494 222:361 223:179
End of report
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