Routing Table Report 00:00 GMT Sun 13 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: 384843
Prefixes after maximum aggregation: 167771
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187687
Total ASes present in the Internet Routing Table: 39279
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32530
Origin ASes announcing only one prefix: 15483
Transit ASes present in the Internet Routing Table: 5125
Transit-only ASes present in the Internet Routing Table: 131
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5400
Unregistered ASNs in the Routing Table: 889
Number of 32-bit ASNs allocated by the RIRs: 1942
Number of 32-bit ASNs visible in the Routing Table: 1624
Prefixes from 32-bit ASNs in the Routing Table: 3720
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2490851172
Equivalent to 148 /8s, 119 /16s and 95 /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: 161596
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92753
Total APNIC prefixes after maximum aggregation: 29889
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89220
Unique aggregates announced from the APNIC address blocks: 38343
APNIC Region origin ASes present in the Internet Routing Table: 4584
APNIC Prefixes per ASN: 19.46
APNIC Region origin ASes announcing only one prefix: 1278
APNIC Region transit ASes present in the Internet Routing Table: 706
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 107
Number of APNIC addresses announced to Internet: 629839872
Equivalent to 37 /8s, 138 /16s and 152 /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: 148948
Total ARIN prefixes after maximum aggregation: 76605
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120724
Unique aggregates announced from the ARIN address blocks: 48484
ARIN Region origin ASes present in the Internet Routing Table: 14747
ARIN Prefixes per ASN: 8.19
ARIN Region origin ASes announcing only one prefix: 5626
ARIN Region transit ASes present in the Internet Routing Table: 1510
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: 804349704
Equivalent to 47 /8s, 241 /16s and 103 /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: 93838
Total RIPE prefixes after maximum aggregation: 51198
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 85460
Unique aggregates announced from the RIPE address blocks: 54578
RIPE Region origin ASes present in the Internet Routing Table: 16113
RIPE Prefixes per ASN: 5.30
RIPE Region origin ASes announcing only one prefix: 7979
RIPE Region transit ASes present in the Internet Routing Table: 2457
Average RIPE Region AS path length visible: 3.8
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: 492199116
Equivalent to 29 /8s, 86 /16s and 92 /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: 36792
Total LACNIC prefixes after maximum aggregation: 7952
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36140
Unique aggregates announced from the LACNIC address blocks: 18607
LACNIC Region origin ASes present in the Internet Routing Table: 1541
LACNIC Prefixes per ASN: 23.45
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 276
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 373
Number of LACNIC addresses announced to Internet: 92920840
Equivalent to 5 /8s, 137 /16s and 220 /24s
Percentage of available LACNIC address space announced: 61.5
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: 8620
Total AfriNIC prefixes after maximum aggregation: 2052
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6692
Unique aggregates announced from the AfriNIC address blocks: 2018
AfriNIC Region origin ASes present in the Internet Routing Table: 496
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 111
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: 27688192
Equivalent to 1 /8s, 166 /16s and 125 /24s
Percentage of available AfriNIC address space announced: 41.3
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 1948 11105 662 Korea Telecom (KIX)
17974 1650 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1622 303 88 TPG Internet Pty Ltd
4755 1523 377 169 Videsh Sanchar Nigam Ltd. Aut
7552 1387 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1116 83 512 Sify Limited
24560 964 343 218 Bharti Airtel Ltd.
17488 961 188 206 Hathway IP Over Cable Interne
4808 956 1950 273 CNCGROUP IP network: China169
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 3542 3814 220 bellsouth.net, inc.
7029 2868 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1850 680 122 AppliedTheory Corporation
4323 1622 1093 388 Time Warner Telecom
20115 1595 1545 624 Charter Communications
22773 1496 2909 103 Cox Communications, Inc.
30036 1414 255 670 Mediacom Communications Corp
19262 1395 4728 400 Verizon Global Networks
7018 1314 7062 862 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 1425 416 14 Corbina telecom
286 1082 810 199 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 596 110 184 Tellcom Iletisim Hizmetleri
20940 559 185 438 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 531 2074 408 TDC Tele Danmark
3320 503 8168 388 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 1706 316 157 TVCABLE BOGOTA
8151 1486 2918 349 Uninet S.A. de C.V.
28573 1482 1043 79 Types of queries are: POCs, o
7303 1238 751 173 Telecom Argentina Stet-France
27947 602 72 85 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 577 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima S.A.
3816 543 234 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 789 146 34 LINKdotNET AS number
8452 704 446 12 TEDATA
15475 455 74 8 Nile Online
36992 284 415 20 Etisalat MISR
3741 281 939 230 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 218 17 13 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 3542 3814 220 bellsouth.net, inc.
7029 2868 1042 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1948 11105 662 Korea Telecom (KIX)
1785 1850 680 122 AppliedTheory Corporation
10620 1706 316 157 TVCABLE BOGOTA
17974 1650 511 36 PT TELEKOMUNIKASI INDONESIA
4323 1622 1093 388 Time Warner Telecom
7545 1622 303 88 TPG Internet Pty Ltd
20115 1595 1545 624 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 2868 2656 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1850 1728 AppliedTheory Corporation
17974 1650 1614 PT TELEKOMUNIKASI INDONESIA
10620 1706 1549 TVCABLE BOGOTA
7545 1622 1534 TPG Internet Pty Ltd
8402 1425 1411 Corbina telecom
28573 1482 1403 Types of queries are: POCs, o
22773 1496 1393 Cox Communications, Inc.
7552 1387 1380 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 /17:6325 /18:10435
/19:20493 /20:28775 /21:28121 /22:37927 /23:35767 /24:200033
/25:66 /26:84 /27:109 /28:285 /29:115 /30:503
/31:53 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2493 2868 Windstream Communications Inc
6389 2182 3542 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1601 1706 TVCABLE BOGOTA
8402 1402 1425 Corbina telecom
30036 1374 1414 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1057 1850 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
22773 958 1496 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:412 2:480 4:19 5:1 6:3 8:357
12:1968 13:1 14:549 15:11 16:3 17:7
20:9 23:63 24:1687 27:1032 31:678 32:120
33:2 34:2 36:4 38:757 39:1 40:110
41:2713 42:61 43:1 44:3 46:1049 47:3
49:299 50:451 52:13 55:8 56:2 57:57
58:922 59:496 60:362 61:1127 62:1106 63:1989
64:4080 65:2306 66:4349 67:2050 68:1356 69:3253
70:954 71:387 72:1849 73:1 74:2684 75:443
76:328 77:888 78:875 79:484 80:1136 81:821
82:528 83:522 84:624 85:1154 86:405 87:933
88:360 89:1599 90:236 91:4267 92:537 93:1542
94:1308 95:1057 96:432 97:285 98:950 99:37
101:233 103:462 106:7 107:91 108:81 109:1192
110:669 111:809 112:362 113:483 114:625 115:710
116:897 117:720 118:901 119:1264 120:236 121:691
122:1576 123:1020 124:1353 125:1356 128:247 129:187
130:165 131:624 132:151 133:21 134:222 135:54
136:213 137:143 138:287 139:132 140:494 141:253
142:390 143:407 144:494 145:64 146:472 147:229
148:690 149:270 150:163 151:194 152:449 153:172
154:7 155:390 156:208 157:362 158:156 159:489
160:332 161:215 162:374 163:173 164:510 165:387
166:543 167:442 168:820 169:146 170:881 171:92
172:4 173:1761 174:708 175:431 176:288 177:367
178:1109 180:1152 181:38 182:658 183:236 184:392
185:1 186:1397 187:780 188:938 189:1162 190:5215
192:5952 193:5066 194:3571 195:3126 196:1278 197:168
198:3631 199:4224 200:5529 201:1703 202:8549 203:8550
204:4318 205:2383 206:2693 207:2822 208:4036 209:3617
210:2746 211:1426 212:2107 213:1814 214:786 215:97
216:4944 217:1609 218:548 219:345 220:1263 221:487
222:326 223:272
End of report
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