Routing Table Report 00:00 GMT Sat 18 Feb, 2012
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: 401853
Prefixes after maximum aggregation: 171425
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 192717
Total ASes present in the Internet Routing Table: 40182
Prefixes per ASN: 10.00
Origin-only ASes present in the Internet Routing Table: 32782
Origin ASes announcing only one prefix: 15546
Transit ASes present in the Internet Routing Table: 5414
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 28
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5174
Unregistered ASNs in the Routing Table: 147
Number of 32-bit ASNs allocated by the RIRs: 2284
Number of 32-bit ASNs visible in the Routing Table: 1986
Prefixes from 32-bit ASNs in the Routing Table: 4795
Special use prefixes present in the Routing Table: 87
Prefixes being announced from unallocated address space: 234
Number of addresses announced to Internet: 2516746717
Equivalent to 150 /8s, 2 /16s and 129 /24s
Percentage of available address space announced: 67.9
Percentage of allocated address space announced: 67.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 169279
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 96483
Total APNIC prefixes after maximum aggregation: 30834
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 92882
Unique aggregates announced from the APNIC address blocks: 39250
APNIC Region origin ASes present in the Internet Routing Table: 4637
APNIC Prefixes per ASN: 20.03
APNIC Region origin ASes announcing only one prefix: 1250
APNIC Region transit ASes present in the Internet Routing Table: 749
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 149
Number of APNIC addresses announced to Internet: 636252160
Equivalent to 37 /8s, 236 /16s and 112 /24s
Percentage of available APNIC address space announced: 80.7
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: 151178
Total ARIN prefixes after maximum aggregation: 77567
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122834
Unique aggregates announced from the ARIN address blocks: 49493
ARIN Region origin ASes present in the Internet Routing Table: 14934
ARIN Prefixes per ASN: 8.23
ARIN Region origin ASes announcing only one prefix: 5679
ARIN Region transit ASes present in the Internet Routing Table: 1549
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 15
Number of ARIN addresses announced to Internet: 805173000
Equivalent to 47 /8s, 253 /16s and 247 /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: 101261
Total RIPE prefixes after maximum aggregation: 52705
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 92142
Unique aggregates announced from the RIPE address blocks: 56056
RIPE Region origin ASes present in the Internet Routing Table: 16343
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 8009
RIPE Region transit ASes present in the Internet Routing Table: 2619
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: 1365
Number of RIPE addresses announced to Internet: 501344140
Equivalent to 29 /8s, 225 /16s and 231 /24s
Percentage of available RIPE address space announced: 80.8
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: 38944
Total LACNIC prefixes after maximum aggregation: 8118
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38553
Unique aggregates announced from the LACNIC address blocks: 19521
LACNIC Region origin ASes present in the Internet Routing Table: 1574
LACNIC Prefixes per ASN: 24.49
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 296
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 453
Number of LACNIC addresses announced to Internet: 96626952
Equivalent to 5 /8s, 194 /16s and 105 /24s
Percentage of available LACNIC address space announced: 64.0
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: 8964
Total AfriNIC prefixes after maximum aggregation: 2114
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 7000
Unique aggregates announced from the AfriNIC address blocks: 2180
AfriNIC Region origin ASes present in the Internet Routing Table: 514
AfriNIC Prefixes per ASN: 13.62
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 121
Average AfriNIC Region AS path length visible: 4.2
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: 30964736
Equivalent to 1 /8s, 216 /16s and 124 /24s
Percentage of available AfriNIC address space announced: 46.1
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 1915 11102 671 Korea Telecom (KIX)
17974 1732 501 36 PT TELEKOMUNIKASI INDONESIA
7545 1640 303 86 TPG Internet Pty Ltd
4755 1550 385 160 Videsh Sanchar Nigam Ltd. Aut
7552 1271 1064 7 Vietel Corporation
9829 1181 997 29 BSNL National Internet Backbo
9583 1124 84 482 Sify Limited
24560 1019 385 167 Bharti Airtel Ltd.
4808 978 1987 296 CNCGROUP IP network: China169
18101 950 130 156 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 3440 3807 202 bellsouth.net, inc.
7029 3387 1018 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
1785 1869 679 124 AppliedTheory Corporation
20115 1627 1550 629 Charter Communications
4323 1604 1060 381 Time Warner Telecom
22773 1527 2910 110 Cox Communications, Inc.
30036 1400 248 750 Mediacom Communications Corp
19262 1387 4703 397 Verizon Global Networks
7018 1310 7012 850 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 1743 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1098 2184 60 LDCOM NETWORKS
286 1049 806 197 KPNQwest Backbone AS
34984 652 188 172 Tellcom Iletisim Hizmetleri
6830 642 1926 411 UPC Distribution Services
20940 612 198 476 Akamai Technologies European
12479 605 643 54 Uni2 Autonomous System
8551 579 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
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 1738 322 176 TVCABLE BOGOTA
28573 1669 1085 65 Types of queries are: POCs, o
8151 1517 2989 341 Uninet S.A. de C.V.
7303 1264 758 183 Telecom Argentina Stet-France
26615 865 672 33 Types of queries are: POCs, o
27947 662 67 108 Telconet S.A
11172 631 91 73 Alestra
22047 581 322 17 Types of queries are: POCs, o
6503 560 418 67 AVANTEL, S.A.
3816 556 238 92 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 1232 958 13 TEDATA
24863 830 156 44 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
33776 237 13 14 Starcomms Nigeria Limited
15706 222 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 YEBO-AS
24835 194 80 8 RAYA Telecom - Egypt
16637 160 664 85 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 3440 3807 202 bellsouth.net, inc.
7029 3387 1018 160 Windstream Communications Inc
18566 2091 382 177 Covad Communications
4766 1915 11102 671 Korea Telecom (KIX)
1785 1869 679 124 AppliedTheory Corporation
8402 1743 480 15 Corbina telecom
10620 1738 322 176 TVCABLE BOGOTA
17974 1732 501 36 PT TELEKOMUNIKASI INDONESIA
28573 1669 1085 65 Types of queries are: POCs, o
7545 1640 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
7029 3387 3227 Windstream Communications Inc
18566 2091 1914 Covad Communications
1785 1869 1745 AppliedTheory Corporation
8402 1743 1728 Corbina telecom
17974 1732 1696 PT TELEKOMUNIKASI INDONESIA
28573 1669 1604 Types of queries are: POCs, o
10620 1738 1562 TVCABLE BOGOTA
7545 1640 1554 TPG Internet Pty Ltd
22773 1527 1417 Cox Communications, Inc.
4755 1550 1390 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
23456 UNALLOCATED 8.14.101.0/24 6461 AboveNet Communicati
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
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.245.1/32 286 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
10.29.245.27/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /11:80 /12:231
/13:458 /14:819 /15:1505 /16:12295 /17:6487 /18:10733
/19:21029 /20:29277 /21:29705 /22:40321 /23:37532 /24:209688
/25:66 /26:82 /27:108 /28:280 /29:105 /30:525
/31:19 /32:449
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3042 3387 Windstream Communications Inc
6389 2109 3440 bellsouth.net, inc.
18566 2040 2091 Covad Communications
8402 1722 1743 Corbina telecom
10620 1635 1738 TVCABLE BOGOTA
30036 1354 1400 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1064 1869 AppliedTheory Corporation
15557 1045 1098 LDCOM NETWORKS
8452 1042 1232 TEDATA
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:509 2:739 4:18 5:1 6:3 8:387
12:1963 13:1 14:599 15:11 16:3 17:7
20:8 23:135 24:1739 27:1189 31:951 32:124
33:2 34:2 36:9 37:188 38:783 39:4
40:115 41:3160 42:97 43:1 44:3 46:1304
47:3 49:334 50:504 52:13 54:2 55:10
56:3 57:46 58:972 59:494 60:345 61:1206
62:957 63:2023 64:4168 65:2286 66:4476 67:2059
68:1358 69:3276 70:981 71:412 72:1825 73:1
74:2711 75:476 76:331 77:980 78:950 79:500
80:1217 81:885 82:617 83:526 84:584 85:1156
86:750 87:917 88:341 89:1571 90:282 91:4484
92:531 93:1349 94:1386 95:1108 96:421 97:311
98:819 99:38 100:4 101:271 103:819 106:65
107:157 108:173 109:1491 110:724 111:853 112:440
113:543 114:616 115:767 116:897 117:724 118:919
119:1261 120:366 121:712 122:1627 123:1088 124:1386
125:1326 128:538 129:193 130:218 131:589 132:166
133:21 134:236 135:62 136:215 137:182 138:288
139:157 140:490 141:263 142:395 143:404 144:509
145:69 146:484 147:247 148:765 149:282 150:163
151:198 152:447 153:170 154:7 155:408 156:212
157:368 158:160 159:512 160:321 161:245 162:341
163:187 164:531 165:411 166:558 167:458 168:763
169:148 170:838 171:114 172:4 173:1749 174:598
175:443 176:513 177:520 178:1274 180:1206 181:67
182:743 183:280 184:431 185:1 186:2050 187:855
188:1072 189:1179 190:5521 192:6007 193:5553 194:4367
195:3455 196:1280 197:165 198:3635 199:4399 200:5711
201:1746 202:8483 203:8680 204:4372 205:2445 206:2763
207:2786 208:4099 209:3586 210:2792 211:1493 212:2066
213:1851 214:857 215:91 216:5045 217:1494 218:555
219:340 220:1232 221:562 222:347 223:313
End of report