Routing Table Report 00:00 GMT Mon 24 Oct, 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: 383848
Prefixes after maximum aggregation: 171030
Deaggregation factor: 2.24
Unique aggregates announced to Internet: 185753
Total ASes present in the Internet Routing Table: 39170
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32330
Origin ASes announcing only one prefix: 15530
Transit ASes present in the Internet Routing Table: 5299
Transit-only ASes present in the Internet Routing Table: 143
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5083
Unregistered ASNs in the Routing Table: 848
Number of 32-bit ASNs allocated by the RIRs: 1888
Number of 32-bit ASNs visible in the Routing Table: 1541
Prefixes from 32-bit ASNs in the Routing Table: 3543
Special use prefixes present in the Routing Table: 82
Prefixes being announced from unallocated address space: 87
Number of addresses announced to Internet: 2487501834
Equivalent to 148 /8s, 68 /16s and 68 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 161062
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92492
Total APNIC prefixes after maximum aggregation: 29796
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89072
Unique aggregates announced from the APNIC address blocks: 37927
APNIC Region origin ASes present in the Internet Routing Table: 4570
APNIC Prefixes per ASN: 19.49
APNIC Region origin ASes announcing only one prefix: 1274
APNIC Region transit ASes present in the Internet Routing Table: 721
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: 94
Number of APNIC addresses announced to Internet: 629025792
Equivalent to 37 /8s, 126 /16s and 44 /24s
Percentage of available APNIC address space announced: 79.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 148266
Total ARIN prefixes after maximum aggregation: 76499
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 119985
Unique aggregates announced from the ARIN address blocks: 48108
ARIN Region origin ASes present in the Internet Routing Table: 14761
ARIN Prefixes per ASN: 8.13
ARIN Region origin ASes announcing only one prefix: 5670
ARIN Region transit ASes present in the Internet Routing Table: 1556
Average ARIN Region AS path length visible: 3.8
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: 804835864
Equivalent to 47 /8s, 248 /16s and 210 /24s
Percentage of available ARIN address space announced: 64.0
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: 94892
Total RIPE prefixes after maximum aggregation: 50877
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 86652
Unique aggregates announced from the RIPE address blocks: 54168
RIPE Region origin ASes present in the Internet Routing Table: 16069
RIPE Prefixes per ASN: 5.39
RIPE Region origin ASes announcing only one prefix: 7976
RIPE Region transit ASes present in the Internet Routing Table: 2550
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: 1080
Number of RIPE addresses announced to Internet: 491449796
Equivalent to 29 /8s, 74 /16s and 237 /24s
Percentage of available RIPE address space announced: 79.2
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: 35875
Total LACNIC prefixes after maximum aggregation: 7949
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 35194
Unique aggregates announced from the LACNIC address blocks: 18097
LACNIC Region origin ASes present in the Internet Routing Table: 1544
LACNIC Prefixes per ASN: 22.79
LACNIC Region origin ASes announcing only one prefix: 450
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 351
Number of LACNIC addresses announced to Internet: 91682824
Equivalent to 5 /8s, 118 /16s and 248 /24s
Percentage of available LACNIC address space announced: 60.7
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: 8568
Total AfriNIC prefixes after maximum aggregation: 2031
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6645
Unique aggregates announced from the AfriNIC address blocks: 1988
AfriNIC Region origin ASes present in the Internet Routing Table: 497
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27857408
Equivalent to 1 /8s, 169 /16s and 18 /24s
Percentage of available AfriNIC address space announced: 41.5
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 1938 11103 657 Korea Telecom (KIX)
17974 1892 519 33 PT TELEKOMUNIKASI INDONESIA
7545 1608 303 86 TPG Internet Pty Ltd
4755 1536 633 173 Videsh Sanchar Nigam Ltd. Aut
7552 1389 1064 8 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1089 80 498 Sify Limited
4808 1036 2076 303 CNCGROUP IP network: China169
24560 966 343 220 Bharti Airtel Ltd.
18101 952 166 148 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 3545 3815 221 bellsouth.net, inc.
7029 2320 1042 210 Windstream Communications Inc
18566 2098 383 177 Covad Communications
1785 1841 680 123 AppliedTheory Corporation
4323 1626 1099 392 Time Warner Telecom
20115 1593 1546 620 Charter Communications
22773 1462 2907 100 Cox Communications, Inc.
30036 1414 254 672 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1322 7047 865 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
3352 2203 2317 51 Internet Access Network of TD
8402 1495 352 13 Corbina telecom
286 1102 827 211 KPNQwest Backbone AS
6830 654 1927 415 UPC Distribution Services
34984 583 108 179 Tellcom Iletisim Hizmetleri
20940 556 186 427 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3292 532 2080 408 TDC Tele Danmark
3320 504 8169 384 Deutsche Telekom AG
12479 479 593 7 Uni2 Autonomous System
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 1694 313 155 TVCABLE BOGOTA
8151 1459 2894 345 Uninet S.A. de C.V.
28573 1425 1032 69 Types of queries are: POCs, o
7303 1229 747 177 Telecom Argentina Stet-France
27947 599 72 85 Telconet S.A
6503 580 450 71 AVANTEL, S.A.
22047 580 322 17 Types of queries are: POCs, o
7738 552 1050 31 Telecomunicacoes da Bahia S.A
10481 548 430 20 Prima S.A.
3816 537 233 96 COLOMBIA TELECOMUNICACIONES S
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 804 146 36 LINKdotNET AS number
8452 651 446 12 TEDATA
15475 445 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 280 939 229 The Internet Solution
6713 244 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 219 18 14 Ci Telecom Autonomous system
33776 208 13 14 Starcomms Nigeria Limited
12258 197 28 58 YEBO-AS
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 3545 3815 221 bellsouth.net, inc.
7029 2320 1042 210 Windstream Communications Inc
3352 2203 2317 51 Internet Access Network of TD
18566 2098 383 177 Covad Communications
4766 1938 11103 657 Korea Telecom (KIX)
17974 1892 519 33 PT TELEKOMUNIKASI INDONESIA
1785 1841 680 123 AppliedTheory Corporation
10620 1694 313 155 TVCABLE BOGOTA
4323 1626 1099 392 Time Warner Telecom
7545 1608 303 86 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
3352 2203 2152 Internet Access Network of TD
7029 2320 2110 Windstream Communications Inc
18566 2098 1921 Covad Communications
17974 1892 1859 PT TELEKOMUNIKASI INDONESIA
1785 1841 1718 AppliedTheory Corporation
10620 1694 1539 TVCABLE BOGOTA
7545 1608 1522 TPG Internet Pty Ltd
8402 1495 1482 Corbina telecom
7552 1389 1381 Vietel Corporation
4755 1536 1363 Videsh Sanchar Nigam Ltd. Aut
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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /10:27 /11:81 /12:236
/13:464 /14:813 /15:1454 /16:12129 /17:6291 /18:10387
/19:20511 /20:28636 /21:28007 /22:37653 /23:36360 /24:199091
/25:67 /26:85 /27:114 /28:280 /29:107 /30:488
/31:53 /32:482
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2184 3545 bellsouth.net, inc.
18566 2047 2098 Covad Communications
7029 1976 2320 Windstream Communications Inc
3352 1751 2203 Internet Access Network of TD
10620 1589 1694 TVCABLE BOGOTA
8402 1472 1495 Corbina telecom
30036 1375 1414 Mediacom Communications Corp
11492 1118 1156 Cable One
1785 1057 1841 AppliedTheory Corporation
7011 1048 1166 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:410 2:488 4:19 5:1 6:3 8:362
12:1960 13:1 14:540 15:11 16:3 17:7
20:9 23:58 24:1683 27:965 31:604 32:150
33:4 34:2 36:4 38:757 39:1 40:110
41:2682 42:53 44:3 46:1003 47:3 49:297
50:442 52:13 55:6 56:2 57:47 58:887
59:495 60:363 61:1186 62:1094 63:1976 64:4078
65:2311 66:4310 67:2013 68:1329 69:3299 70:937
71:379 72:1834 73:1 74:2626 75:401 76:327
77:892 78:866 79:480 80:1595 81:943 82:506
83:580 84:626 85:1119 86:412 87:895 88:424
89:1614 90:237 91:4217 92:532 93:1545 94:1313
95:1089 96:441 97:284 98:932 99:37 101:212
103:390 106:70 107:73 108:76 109:1056 110:671
111:789 112:331 113:487 114:605 115:705 116:905
117:720 118:914 119:1246 120:339 121:712 122:1574
123:1014 124:1356 125:1362 128:250 129:187 130:166
131:593 132:145 133:21 134:220 135:54 136:213
137:140 138:284 139:136 140:482 141:297 142:392
143:434 144:493 145:64 146:476 147:225 148:693
149:267 150:166 151:192 152:447 153:178 154:7
155:388 156:208 157:363 158:153 159:479 160:323
161:214 162:340 163:174 164:509 165:388 166:537
167:438 168:739 169:147 170:872 171:86 172:4
173:1722 174:690 175:435 176:278 177:346 178:1073
180:1098 181:36 182:658 183:217 184:375 185:1
186:1295 187:706 188:943 189:872 190:5136 192:5952
193:5055 194:3586 195:3131 196:1257 197:165 198:3635
199:4181 200:5527 201:1684 202:8566 203:8493 204:4296
205:2364 206:2688 207:2835 208:4041 209:3602 210:2706
211:1466 212:2125 213:1808 214:778 215:95 216:4939
217:1620 218:570 219:343 220:1247 221:514 222:346
223:276
End of report
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