Routing Table Report 00:00 GMT Mon 28 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: 386594
Prefixes after maximum aggregation: 168457
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188369
Total ASes present in the Internet Routing Table: 39405
Prefixes per ASN: 9.81
Origin-only ASes present in the Internet Routing Table: 32473
Origin ASes announcing only one prefix: 15494
Transit ASes present in the Internet Routing Table: 5270
Transit-only ASes present in the Internet Routing Table: 137
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 29
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5755
Unregistered ASNs in the Routing Table: 931
Number of 32-bit ASNs allocated by the RIRs: 2007
Number of 32-bit ASNs visible in the Routing Table: 1662
Prefixes from 32-bit ASNs in the Routing Table: 3926
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 83
Number of addresses announced to Internet: 2494410084
Equivalent to 148 /8s, 173 /16s and 173 /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: 91.6
Total number of prefixes smaller than registry allocations: 162100
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93345
Total APNIC prefixes after maximum aggregation: 30147
APNIC Deaggregation factor: 3.10
Prefixes being announced from the APNIC address blocks: 89840
Unique aggregates announced from the APNIC address blocks: 38621
APNIC Region origin ASes present in the Internet Routing Table: 4591
APNIC Prefixes per ASN: 19.57
APNIC Region origin ASes announcing only one prefix: 1273
APNIC Region transit ASes present in the Internet Routing Table: 728
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 109
Number of APNIC addresses announced to Internet: 630756608
Equivalent to 37 /8s, 152 /16s and 149 /24s
Percentage of available APNIC address space announced: 80.0
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: 148743
Total ARIN prefixes after maximum aggregation: 76735
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120766
Unique aggregates announced from the ARIN address blocks: 48629
ARIN Region origin ASes present in the Internet Routing Table: 14769
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5632
ARIN Region transit ASes present in the Internet Routing Table: 1530
Average ARIN Region AS path length visible: 3.5
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: 803645192
Equivalent to 47 /8s, 230 /16s and 167 /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: 94831
Total RIPE prefixes after maximum aggregation: 51453
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 86126
Unique aggregates announced from the RIPE address blocks: 54542
RIPE Region origin ASes present in the Internet Routing Table: 16149
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 7988
RIPE Region transit ASes present in the Internet Routing Table: 2528
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1160
Number of RIPE addresses announced to Internet: 492912588
Equivalent to 29 /8s, 97 /16s and 63 /24s
Percentage of available RIPE address space announced: 79.4
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: 37180
Total LACNIC prefixes after maximum aggregation: 8000
LACNIC Deaggregation factor: 4.65
Prefixes being announced from the LACNIC address blocks: 36497
Unique aggregates announced from the LACNIC address blocks: 18772
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.53
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 377
Number of LACNIC addresses announced to Internet: 93839688
Equivalent to 5 /8s, 151 /16s and 225 /24s
Percentage of available LACNIC address space announced: 62.1
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: 8365
Total AfriNIC prefixes after maximum aggregation: 2048
AfriNIC Deaggregation factor: 4.08
Prefixes being announced from the AfriNIC address blocks: 6409
Unique aggregates announced from the AfriNIC address blocks: 2029
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 12.74
AfriNIC Region origin ASes announcing only one prefix: 155
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 4.2
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: 27872512
Equivalent to 1 /8s, 169 /16s and 77 /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 1955 11102 667 Korea Telecom (KIX)
17974 1635 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4755 1510 381 157 Videsh Sanchar Nigam Ltd. Aut
7552 1389 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1096 81 493 Sify Limited
24560 966 343 218 Bharti Airtel Ltd.
18101 954 119 149 Reliance Infocom Ltd Internet
17488 943 172 212 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 3482 3814 218 bellsouth.net, inc.
7029 2907 1020 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1850 680 122 AppliedTheory Corporation
4323 1610 1078 387 Time Warner Telecom
20115 1599 1546 624 Charter Communications
22773 1502 2909 104 Cox Communications, Inc.
30036 1438 258 678 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1317 7062 863 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 1576 480 15 Corbina telecom
286 1093 811 202 KPNQwest Backbone AS
6830 652 1927 412 UPC Distribution Services
34984 612 114 193 Tellcom Iletisim Hizmetleri
20940 564 188 443 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 532 2106 408 TDC Tele Danmark
3320 512 8168 389 Deutsche Telekom AG
12479 504 606 23 Uni2 Autonomous System
8866 462 133 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 1700 315 179 TVCABLE BOGOTA
28573 1509 1045 71 Types of queries are: POCs, o
8151 1481 2954 338 Uninet S.A. de C.V.
7303 1236 751 173 Telecom Argentina Stet-France
27947 623 72 88 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
6503 564 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 546 429 25 Prima S.A.
3816 545 236 87 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
8452 894 446 12 TEDATA
24863 780 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 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
24835 192 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
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 3482 3814 218 bellsouth.net, inc.
7029 2907 1020 199 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1955 11102 667 Korea Telecom (KIX)
1785 1850 680 122 AppliedTheory Corporation
10620 1700 315 179 TVCABLE BOGOTA
17974 1635 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4323 1610 1078 387 Time Warner Telecom
20115 1599 1546 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 2907 2708 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1850 1728 AppliedTheory Corporation
17974 1635 1597 PT TELEKOMUNIKASI INDONESIA
8402 1576 1561 Corbina telecom
7545 1623 1537 TPG Internet Pty Ltd
10620 1700 1521 TVCABLE BOGOTA
28573 1509 1438 Types of queries are: POCs, o
22773 1502 1398 Cox Communications, Inc.
7552 1389 1382 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
10.0.1.0/24 286 KPNQwest Backbone AS
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
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 /14:814 /15:1465 /16:12170 /17:6347 /18:10439
/19:20561 /20:28890 /21:28285 /22:38416 /23:36068 /24:200573
/25:67 /26:83 /27:112 /28:285 /29:112 /30:526
/31:53 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2538 2907 Windstream Communications Inc
6389 2125 3482 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1595 1700 TVCABLE BOGOTA
8402 1552 1576 Corbina telecom
30036 1398 1438 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1058 1850 AppliedTheory Corporation
7011 1050 1167 Citizens Utilities
22773 962 1502 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:427 2:480 4:19 5:1 6:3 8:359
10:1 12:1954 13:1 14:552 15:11 16:3
17:7 20:9 23:68 24:1701 27:1036 31:693
32:121 33:2 34:2 36:4 38:768 39:1
40:109 41:2890 42:64 43:1 44:3 46:1104
47:3 49:298 50:451 52:13 55:6 56:2
57:59 58:930 59:482 60:360 61:1173 62:925
63:1982 64:4099 65:2311 66:4371 67:2041 68:1357
69:3259 70:953 71:359 72:1844 73:1 74:2703
75:443 76:332 77:899 78:894 79:466 80:1138
81:850 82:534 83:528 84:479 85:1162 86:410
87:914 88:356 89:1606 90:246 91:4292 92:538
93:1433 94:1328 95:1110 96:400 97:285 98:773
99:37 101:247 103:517 106:7 107:97 108:89
109:1211 110:682 111:810 112:364 113:502 114:634
115:711 116:921 117:722 118:883 119:1280 120:354
121:692 122:1561 123:1032 124:1369 125:1351 128:301
129:187 130:178 131:634 132:155 133:21 134:224
135:54 136:212 137:145 138:285 139:133 140:493
141:250 142:379 143:400 144:498 145:66 146:477
147:231 148:692 149:274 150:163 151:191 152:449
153:172 154:7 155:394 156:208 157:362 158:157
159:499 160:333 161:215 162:365 163:175 164:518
165:402 166:540 167:450 168:827 169:146 170:826
171:87 172:4 173:1770 174:578 175:436 176:332
177:403 178:1138 180:1185 181:39 182:669 183:250
184:395 185:1 186:1459 187:788 188:996 189:1160
190:5253 192:5962 193:5068 194:3577 195:3139 196:1292
197:176 198:3630 199:4238 200:5533 201:1702 202:8575
203:8531 204:4317 205:2414 206:2686 207:2843 208:4029
209:3614 210:2758 211:1479 212:2059 213:1813 214:786
215:96 216:4959 217:1490 218:577 219:342 220:1260
221:523 222:328 223:281
End of report
