Routing Table Report 00:00 GMT Wed 14 Dec, 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: 388896
Prefixes after maximum aggregation: 169103
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 189022
Total ASes present in the Internet Routing Table: 39569
Prefixes per ASN: 9.83
Origin-only ASes present in the Internet Routing Table: 32533
Origin ASes announcing only one prefix: 15539
Transit ASes present in the Internet Routing Table: 5307
Transit-only ASes present in the Internet Routing Table: 138
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6096
Unregistered ASNs in the Routing Table: 1011
Number of 32-bit ASNs allocated by the RIRs: 2078
Number of 32-bit ASNs visible in the Routing Table: 1729
Prefixes from 32-bit ASNs in the Routing Table: 4112
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 81
Number of addresses announced to Internet: 2502043686
Equivalent to 149 /8s, 34 /16s and 40 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 162687
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93858
Total APNIC prefixes after maximum aggregation: 30165
APNIC Deaggregation factor: 3.11
Prefixes being announced from the APNIC address blocks: 90355
Unique aggregates announced from the APNIC address blocks: 38513
APNIC Region origin ASes present in the Internet Routing Table: 4581
APNIC Prefixes per ASN: 19.72
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 728
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 120
Number of APNIC addresses announced to Internet: 631532544
Equivalent to 37 /8s, 164 /16s and 108 /24s
Percentage of available APNIC address space announced: 80.1
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: 149151
Total ARIN prefixes after maximum aggregation: 77028
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121057
Unique aggregates announced from the ARIN address blocks: 48704
ARIN Region origin ASes present in the Internet Routing Table: 14818
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5659
ARIN Region transit ASes present in the Internet Routing Table: 1546
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 27
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 804502792
Equivalent to 47 /8s, 243 /16s and 189 /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: 95659
Total RIPE prefixes after maximum aggregation: 51729
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87139
Unique aggregates announced from the RIPE address blocks: 54988
RIPE Region origin ASes present in the Internet Routing Table: 16204
RIPE Prefixes per ASN: 5.38
RIPE Region origin ASes announcing only one prefix: 8011
RIPE Region transit ASes present in the Internet Routing Table: 2554
Average RIPE Region AS path length visible: 3.7
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1205
Number of RIPE addresses announced to Internet: 494330572
Equivalent to 29 /8s, 118 /16s and 226 /24s
Percentage of available RIPE address space announced: 79.6
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: 37404
Total LACNIC prefixes after maximum aggregation: 8032
LACNIC Deaggregation factor: 4.66
Prefixes being announced from the LACNIC address blocks: 36790
Unique aggregates announced from the LACNIC address blocks: 18887
LACNIC Region origin ASes present in the Internet Routing Table: 1554
LACNIC Prefixes per ASN: 23.67
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 288
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: 388
Number of LACNIC addresses announced to Internet: 94705672
Equivalent to 5 /8s, 165 /16s and 24 /24s
Percentage of available LACNIC address space announced: 62.7
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: 8464
Total AfriNIC prefixes after maximum aggregation: 2075
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6506
Unique aggregates announced from the AfriNIC address blocks: 2073
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 12.96
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 4.0
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: 30780416
Equivalent to 1 /8s, 213 /16s and 172 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1945 11096 661 Korea Telecom (KIX)
17974 1702 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 85 TPG Internet Pty Ltd
4755 1511 385 156 Videsh Sanchar Nigam Ltd. Aut
7552 1375 1064 7 Vietel Corporation
9829 1170 989 28 BSNL National Internet Backbo
9583 1099 81 496 Sify Limited
24560 980 381 164 Bharti Airtel Ltd.
18101 963 122 157 Reliance Infocom Ltd Internet
17488 948 166 226 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 3479 3814 218 bellsouth.net, inc.
7029 2855 1042 211 Windstream Communications Inc
18566 2092 382 176 Covad Communications
1785 1852 680 121 AppliedTheory Corporation
4323 1618 1089 387 Time Warner Telecom
20115 1604 1549 626 Charter Communications
22773 1511 2909 104 Cox Communications, Inc.
30036 1449 259 679 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1310 7046 859 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 1572 480 15 Corbina telecom
286 1098 807 199 KPNQwest Backbone AS
6830 646 1927 411 UPC Distribution Services
34984 625 132 195 Tellcom Iletisim Hizmetleri
2118 550 99 14 EUnet/RELCOM Autonomous Syste
12479 549 630 48 Uni2 Autonomous System
20940 549 177 438 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3292 531 2106 407 TDC Tele Danmark
3320 524 8161 391 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 1721 318 155 TVCABLE BOGOTA
28573 1556 1060 73 Types of queries are: POCs, o
8151 1485 2962 349 Uninet S.A. de C.V.
7303 1240 751 175 Telecom Argentina Stet-France
27947 629 73 92 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
6503 560 434 69 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 546 237 90 COLOMBIA TELECOMUNICACIONES S
10481 543 429 25 Prima 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 964 958 13 TEDATA
24863 787 146 34 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
16637 158 664 86 Johnnic e-Ventures
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 3479 3814 218 bellsouth.net, inc.
7029 2855 1042 211 Windstream Communications Inc
18566 2092 382 176 Covad Communications
4766 1945 11096 661 Korea Telecom (KIX)
1785 1852 680 121 AppliedTheory Corporation
10620 1721 318 155 TVCABLE BOGOTA
17974 1702 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1627 303 85 TPG Internet Pty Ltd
4323 1618 1089 387 Time Warner Telecom
20115 1604 1549 626 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 2855 2644 Windstream Communications Inc
18566 2092 1916 Covad Communications
1785 1852 1731 AppliedTheory Corporation
17974 1702 1664 PT TELEKOMUNIKASI INDONESIA
10620 1721 1566 TVCABLE BOGOTA
8402 1572 1557 Corbina telecom
7545 1627 1542 TPG Internet Pty Ltd
28573 1556 1483 Types of queries are: POCs, o
22773 1511 1407 Cox Communications, Inc.
7552 1375 1368 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
37.1.224.0/21 51059 Brightbox Systems Ltd
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
64.21.192.0/20 11610 Internet Nebraska
64.21.212.0/22 11610 Internet Nebraska
64.21.216.0/21 11610 Internet Nebraska
66.175.222.0/23 30058 FDCservers.net LLC
66.180.239.0/24 35888 VIGNETTE CORPORATION
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 /12:237
/13:465 /14:816 /15:1474 /16:12189 /17:6356 /18:10494
/19:20634 /20:28990 /21:28514 /22:38656 /23:36311 /24:201857
/25:69 /26:85 /27:112 /28:298 /29:113 /30:547
/31:52 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2480 2855 Windstream Communications Inc
6389 2122 3479 bellsouth.net, inc.
18566 2042 2092 Covad Communications
10620 1616 1721 TVCABLE BOGOTA
8402 1548 1572 Corbina telecom
30036 1409 1449 Mediacom Communications Corp
11492 1105 1142 Cable One
1785 1057 1852 AppliedTheory Corporation
7011 1051 1168 Citizens Utilities
22773 969 1511 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:450 2:485 4:19 5:1 6:3 8:362
12:1947 13:1 14:561 15:11 16:3 17:7
20:9 23:72 24:1702 27:1120 31:731 32:122
33:2 34:2 36:4 38:775 39:1 40:114
41:2932 42:78 43:1 44:3 46:1135 47:3
49:279 50:466 52:13 55:5 56:2 57:55
58:950 59:486 60:344 61:1190 62:938 63:1985
64:4082 65:2306 66:4393 67:2039 68:1367 69:3241
70:964 71:363 72:1805 73:1 74:2697 75:445
76:331 77:940 78:887 79:442 80:1156 81:851
82:545 83:532 84:482 85:1171 86:417 87:912
88:357 89:1613 90:248 91:4369 92:541 93:1397
94:1326 95:1112 96:399 97:286 98:792 99:38
101:250 103:544 106:8 107:109 108:100 109:1108
110:696 111:825 112:379 113:506 114:624 115:716
116:907 117:730 118:900 119:1270 120:344 121:702
122:1561 123:1024 124:1404 125:1341 128:321 129:192
130:186 131:574 132:161 133:21 134:227 135:54
136:213 137:151 138:286 139:134 140:482 141:255
142:383 143:391 144:503 145:67 146:476 147:233
148:687 149:271 150:165 151:192 152:446 153:171
154:7 155:397 156:209 157:359 158:155 159:504
160:341 161:221 162:362 163:183 164:522 165:408
166:542 167:458 168:818 169:147 170:816 171:93
172:4 173:1810 174:609 175:432 176:340 177:427
178:1138 180:1225 181:38 182:674 183:259 184:400
185:1 186:1472 187:786 188:946 189:1180 190:5307
192:6007 193:5129 194:3841 195:3434 196:1287 197:174
198:3632 199:4235 200:5512 201:1706 202:8603 203:8530
204:4336 205:2410 206:2697 207:2845 208:4024 209:3595
210:2770 211:1479 212:2023 213:1806 214:816 215:95
216:4968 217:1500 218:586 219:345 220:1258 221:529
222:327 223:262
End of report
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