Routing Table Report 00:00 GMT Fri 11 Nov, 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: 385167
Prefixes after maximum aggregation: 167976
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187822
Total ASes present in the Internet Routing Table: 39315
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32363
Origin ASes announcing only one prefix: 15506
Transit ASes present in the Internet Routing Table: 5333
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5408
Unregistered ASNs in the Routing Table: 893
Number of 32-bit ASNs allocated by the RIRs: 1939
Number of 32-bit ASNs visible in the Routing Table: 1619
Prefixes from 32-bit ASNs in the Routing Table: 3716
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2490988324
Equivalent to 148 /8s, 121 /16s and 119 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161536
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93081
Total APNIC prefixes after maximum aggregation: 30032
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89554
Unique aggregates announced from the APNIC address blocks: 38349
APNIC Region origin ASes present in the Internet Routing Table: 4587
APNIC Prefixes per ASN: 19.52
APNIC Region origin ASes announcing only one prefix: 1278
APNIC Region transit ASes present in the Internet Routing Table: 723
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 104
Number of APNIC addresses announced to Internet: 629968128
Equivalent to 37 /8s, 140 /16s and 141 /24s
Percentage of available APNIC address space announced: 79.9
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: 148933
Total ARIN prefixes after maximum aggregation: 76585
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120660
Unique aggregates announced from the ARIN address blocks: 48494
ARIN Region origin ASes present in the Internet Routing Table: 14758
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5637
ARIN Region transit ASes present in the Internet Routing Table: 1555
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804317960
Equivalent to 47 /8s, 240 /16s and 235 /24s
Percentage of available ARIN address space announced: 63.9
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: 93869
Total RIPE prefixes after maximum aggregation: 51219
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85445
Unique aggregates announced from the RIPE address blocks: 54643
RIPE Region origin ASes present in the Internet Routing Table: 16121
RIPE Prefixes per ASN: 5.30
RIPE Region origin ASes announcing only one prefix: 7986
RIPE Region transit ASes present in the Internet Routing Table: 2561
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1128
Number of RIPE addresses announced to Internet: 492135116
Equivalent to 29 /8s, 85 /16s and 98 /24s
Percentage of available RIPE address space announced: 79.3
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: 36759
Total LACNIC prefixes after maximum aggregation: 8000
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 36114
Unique aggregates announced from the LACNIC address blocks: 18604
LACNIC Region origin ASes present in the Internet Routing Table: 1549
LACNIC Prefixes per ASN: 23.31
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 371
Number of LACNIC addresses announced to Internet: 92980488
Equivalent to 5 /8s, 138 /16s and 197 /24s
Percentage of available LACNIC address space announced: 61.6
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: 8595
Total AfriNIC prefixes after maximum aggregation: 2064
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6663
Unique aggregates announced from the AfriNIC address blocks: 2015
AfriNIC Region origin ASes present in the Internet Routing Table: 495
AfriNIC Prefixes per ASN: 13.46
AfriNIC Region origin ASes announcing only one prefix: 154
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 4.3
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: 27671552
Equivalent to 1 /8s, 166 /16s and 60 /24s
Percentage of available AfriNIC address space announced: 41.2
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 1946 11105 662 Korea Telecom (KIX)
17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1622 303 88 TPG Internet Pty Ltd
4755 1542 377 170 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1093 80 503 Sify Limited
4808 1046 2033 291 CNCGROUP IP network: China169
24560 964 343 218 Bharti Airtel Ltd.
17488 960 187 207 Hathway IP Over Cable Interne
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 2858 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications
1785 1848 680 123 AppliedTheory Corporation
4323 1623 1077 388 Time Warner Telecom
20115 1594 1546 623 Charter Communications
22773 1494 2909 103 Cox Communications, Inc.
30036 1410 255 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1321 7046 867 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
8402 1482 416 14 Corbina telecom
286 1088 811 205 KPNQwest Backbone AS
6830 649 1927 412 UPC Distribution Services
34984 595 110 184 Tellcom Iletisim Hizmetleri
20940 560 187 438 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 531 2074 408 TDC Tele Danmark
3320 501 8168 386 Deutsche Telekom AG
12479 480 596 9 Uni2 Autonomous System
8866 463 133 26 Bulgarian Telecommunication C
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 1702 315 155 TVCABLE BOGOTA
28573 1482 1043 79 Types of queries are: POCs, o
8151 1473 2918 341 Uninet S.A. de C.V.
7303 1238 751 173 Telecom Argentina Stet-France
27947 604 72 85 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 575 434 70 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 543 234 97 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 794 146 36 LINKdotNET AS number
8452 658 446 12 TEDATA
15475 443 74 8 Nile Online
36992 286 415 21 Etisalat MISR
3741 282 939 231 The Internet Solution
15706 240 32 6 Sudatel Internet Exchange Aut
33776 239 13 8 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 219 18 14 Ci Telecom Autonomous system
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 2858 1042 211 Windstream Communications Inc
18566 2094 382 176 Covad Communications
4766 1946 11105 662 Korea Telecom (KIX)
1785 1848 680 123 AppliedTheory Corporation
10620 1702 315 155 TVCABLE BOGOTA
17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1623 1077 388 Time Warner Telecom
7545 1622 303 88 TPG Internet Pty Ltd
20115 1594 1546 623 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2858 2647 Windstream Communications Inc
18566 2094 1918 Covad Communications
1785 1848 1725 AppliedTheory Corporation
17974 1647 1611 PT TELEKOMUNIKASI INDONESIA
10620 1702 1547 TVCABLE BOGOTA
7545 1622 1534 TPG Internet Pty Ltd
8402 1482 1468 Corbina telecom
28573 1482 1403 Types of queries are: POCs, o
22773 1494 1391 Cox Communications, Inc.
7552 1394 1387 Vietel Corporation
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 37345 MEDALLION Communications
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
/13:465 /14:813 /15:1454 /16:12157 /17:6328 /18:10435
/19:20515 /20:28794 /21:28099 /22:37824 /23:35816 /24:200386
/25:66 /26:84 /27:110 /28:287 /29:117 /30:501
/31:53 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2485 2858 Windstream Communications Inc
6389 2185 3545 bellsouth.net, inc.
18566 2044 2094 Covad Communications
10620 1597 1702 TVCABLE BOGOTA
8402 1459 1482 Corbina telecom
30036 1370 1410 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1848 AppliedTheory Corporation
7011 1051 1169 Citizens Utilities
22773 956 1494 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:414 2:482 4:19 5:1 6:3 8:357
12:1966 13:1 14:547 15:11 16:3 17:7
20:9 23:63 24:1686 27:1033 31:679 32:120
33:2 34:2 36:4 38:759 39:1 40:110
41:2684 42:60 44:3 46:1032 47:3 49:298
50:451 52:13 55:8 56:2 57:57 58:919
59:496 60:362 61:1136 62:1105 63:1987 64:4086
65:2305 66:4346 67:2040 68:1356 69:3251 70:954
71:386 72:1850 73:1 74:2686 75:443 76:327
77:882 78:878 79:482 80:1139 81:843 82:530
83:528 84:631 85:1149 86:408 87:938 88:360
89:1605 90:236 91:4273 92:537 93:1551 94:1306
95:1087 96:433 97:286 98:950 99:37 101:231
103:457 106:7 107:88 108:78 109:1174 110:673
111:806 112:362 113:484 114:625 115:716 116:896
117:723 118:898 119:1275 120:348 121:705 122:1578
123:1025 124:1352 125:1355 128:247 129:187 130:165
131:624 132:150 133:21 134:222 135:54 136:212
137:142 138:287 139:132 140:494 141:320 142:389
143:410 144:493 145:64 146:472 147:229 148:685
149:272 150:164 151:194 152:448 153:174 154:7
155:390 156:208 157:361 158:155 159:488 160:332
161:215 162:374 163:174 164:511 165:387 166:544
167:444 168:822 169:146 170:880 171:87 172:4
173:1754 174:708 175:431 176:285 177:371 178:1103
180:1151 181:38 182:660 183:236 184:393 185:1
186:1402 187:777 188:969 189:1153 190:5212 192:5959
193:5064 194:3574 195:3129 196:1278 197:171 198:3637
199:4223 200:5539 201:1697 202:8564 203:8548 204:4321
205:2379 206:2695 207:2826 208:4036 209:3615 210:2746
211:1468 212:2119 213:1813 214:787 215:96 216:4936
217:1603 218:570 219:344 220:1261 221:517 222:325
223:271
End of report
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