The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Wednesday, December 11, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Thu 12 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/au/

Analysis Summary
----------------

BGP routing table entries examined: 470337
Prefixes after maximum aggregation: 188716
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 235437
Total ASes present in the Internet Routing Table: 45533
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 35480
Origin ASes announcing only one prefix: 16285
Transit ASes present in the Internet Routing Table: 5789
Transit-only ASes present in the Internet Routing Table: 153
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 29
Max AS path prepend of ASN ( 55644) 25
Prefixes from unregistered ASNs in the Routing Table: 1119
Unregistered ASNs in the Routing Table: 304
Number of 32-bit ASNs allocated by the RIRs: 5487
Number of 32-bit ASNs visible in the Routing Table: 4264
Prefixes from 32-bit ASNs in the Routing Table: 13366
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 1362
Number of addresses announced to Internet: 2657059580
Equivalent to 158 /8s, 95 /16s and 130 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 163423

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110343
Total APNIC prefixes after maximum aggregation: 33488
APNIC Deaggregation factor: 3.30
Prefixes being announced from the APNIC address blocks: 112586
Unique aggregates announced from the APNIC address blocks: 47873
APNIC Region origin ASes present in the Internet Routing Table: 4835
APNIC Prefixes per ASN: 23.29
APNIC Region origin ASes announcing only one prefix: 1215
APNIC Region transit ASes present in the Internet Routing Table: 824
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 29
Number of APNIC region 32-bit ASNs visible in the Routing Table: 774
Number of APNIC addresses announced to Internet: 728338172
Equivalent to 43 /8s, 105 /16s and 142 /24s
Percentage of available APNIC address space announced: 85.1

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 162043
Total ARIN prefixes after maximum aggregation: 81425
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162830
Unique aggregates announced from the ARIN address blocks: 75716
ARIN Region origin ASes present in the Internet Routing Table: 15890
ARIN Prefixes per ASN: 10.25
ARIN Region origin ASes announcing only one prefix: 6005
ARIN Region transit ASes present in the Internet Routing Table: 1630
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 45
Number of ARIN addresses announced to Internet: 1073207808
Equivalent to 63 /8s, 247 /16s and 218 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 119344
Total RIPE prefixes after maximum aggregation: 61158
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 123216
Unique aggregates announced from the RIPE address blocks: 79144
RIPE Region origin ASes present in the Internet Routing Table: 17532
RIPE Prefixes per ASN: 7.03
RIPE Region origin ASes announcing only one prefix: 8303
RIPE Region transit ASes present in the Internet Routing Table: 2757
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2514
Number of RIPE addresses announced to Internet: 655957248
Equivalent to 39 /8s, 25 /16s and 29 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52647
Total LACNIC prefixes after maximum aggregation: 9812
LACNIC Deaggregation factor: 5.37
Prefixes being announced from the LACNIC address blocks: 57925
Unique aggregates announced from the LACNIC address blocks: 27406
LACNIC Region origin ASes present in the Internet Routing Table: 2043
LACNIC Prefixes per ASN: 28.35
LACNIC Region origin ASes announcing only one prefix: 556
LACNIC Region transit ASes present in the Internet Routing Table: 386
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 923
Number of LACNIC addresses announced to Internet: 146422528
Equivalent to 8 /8s, 186 /16s and 59 /24s
Percentage of available LACNIC address space announced: 87.3

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11774
Total AfriNIC prefixes after maximum aggregation: 2603
AfriNIC Deaggregation factor: 4.52
Prefixes being announced from the AfriNIC address blocks: 12418
Unique aggregates announced from the AfriNIC address blocks: 4230
AfriNIC Region origin ASes present in the Internet Routing Table: 690
AfriNIC Prefixes per ASN: 18.00
AfriNIC Region origin ASes announcing only one prefix: 206
AfriNIC Region transit ASes present in the Internet Routing Table: 139
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 8
Number of AfriNIC addresses announced to Internet: 48608768
Equivalent to 2 /8s, 229 /16s and 182 /24s
Percentage of available AfriNIC address space announced: 48.3

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2726 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2156 11550 652 Korea Telecom (KIX)
7545 2120 319 111 TPG Internet Pty Ltd
4755 1796 392 190 TATA Communications formerly
9829 1532 1249 43 BSNL National Internet Backbo
9583 1329 103 542 Sify Limited
9498 1220 309 72 BHARTI Airtel Ltd.
7552 1171 1080 13 Vietel Corporation
24560 1097 382 167 Bharti Airtel Ltd., Telemedia
4808 1039 1945 304 CNCGROUP IP network: China169

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3037 3688 53 BellSouth.net Inc.
22773 2304 2939 139 Cox Communications, Inc.
18566 2051 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
20115 1683 1658 598 Charter Communications
4323 1646 1098 417 Time Warner Telecom
701 1503 11144 776 MCI Communications Services,
30036 1380 309 576 Mediacom Communications Corp
7018 1316 17746 858 AT&T WorldNet Services
6983 1292 755 578 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1940 544 16 OJSC "Vimpelcom"
34984 1366 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1182 448 891 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 896 99 42 TOV "Bank-Inform"
6849 855 363 39 JSC UKRTELECOM,
8551 792 370 41 Bezeq International
6830 773 2328 426 UPC Distribution Services
12479 679 798 53 Uni2 Autonomous System
35228 549 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3431 1829 94 NET Servicos de Comunicao S.A
10620 2693 436 200 Telmex Colombia S.A.
7303 1736 1161 231 Telecom Argentina Stet-France
18881 1721 908 20 Global Village Telecom
8151 1352 2852 418 UniNet S.A. de C.V.
11830 869 364 15 Instituto Costarricense de El
27947 826 94 92 Telconet S.A
6147 789 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 770 434 61 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 872 338 26 LINKdotNET AS number
6713 592 650 32 Itissalat Al-MAGHRIB
8452 415 956 9 TEDATA
24835 298 144 9 RAYA Telecom - Egypt
29571 249 21 13 Ci Telecom Autonomous system
3741 247 921 209 The Internet Solution
36992 246 525 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3431 1829 94 NET Servicos de Comunicao S.A
6389 3037 3688 53 BellSouth.net Inc.
17974 2726 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2693 436 200 Telmex Colombia S.A.
22773 2304 2939 139 Cox Communications, Inc.
4766 2156 11550 652 Korea Telecom (KIX)
7545 2120 319 111 TPG Internet Pty Ltd
18566 2051 379 178 MegaPath Corporation
1785 2048 686 131 PaeTec Communications, Inc.
8402 1940 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/au/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3037 2984 BellSouth.net Inc.
17974 2726 2638 PT TELEKOMUNIKASI INDONESIA
10620 2693 2493 Telmex Colombia S.A.
22773 2304 2165 Cox Communications, Inc.
7545 2120 2009 TPG Internet Pty Ltd
8402 1940 1924 OJSC "Vimpelcom"
1785 2048 1917 PaeTec Communications, Inc.
18566 2051 1873 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1721 1701 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 4323 Time Warner Telecom

Complete listing at http://thyme.rand.apnic.net/au/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/au/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 /8:16 /9:11 /10:31 /11:92 /12:253
/13:475 /14:936 /15:1641 /16:12864 /17:6783 /18:11187
/19:23114 /20:32895 /21:35746 /22:50127 /23:43789 /24:250154
/25:45 /26:32 /27:49 /28:37 /29:29 /30:31
/31:0 /32:0

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2006 2051 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3037 BellSouth.net Inc.
8402 1645 1940 OJSC "Vimpelcom"
22773 1554 2304 Cox Communications, Inc.
30036 1221 1380 Mediacom Communications Corp
11492 1184 1225 Cable One
1785 1088 2048 PaeTec Communications, Inc.
6983 1034 1292 ITC^Deltacom
22561 966 1242 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/au/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:920 2:864 3:3 4:16 5:812 6:21
8:611 12:1883 13:3 14:875 15:11 16:3
17:19 18:19 20:36 23:614 24:1757 27:1715
31:1521 32:45 33:2 34:5 36:101 37:1945
38:913 39:5 40:181 41:3261 42:230 44:14
46:2086 47:10 49:697 50:866 52:12 54:44
55:7 56:4 57:25 58:1097 59:582 60:369
61:1471 62:1236 63:1971 64:4382 65:2331 66:4150
67:2120 68:1095 69:3283 70:908 71:508 72:2019
74:2575 75:324 76:304 77:1204 78:1019 79:668
80:1285 81:1051 82:633 83:754 84:586 85:1256
86:382 87:1034 88:521 89:1569 90:151 91:5723
92:619 93:1614 94:2113 95:1550 96:519 97:349
98:1080 99:41 100:33 101:445 103:3786 105:531
106:144 107:240 108:537 109:2007 110:959 111:1123
112:584 113:802 114:741 115:1023 116:1008 117:804
118:1225 119:1289 120:393 121:751 122:1843 123:1266
124:1340 125:1468 128:611 129:222 130:339 131:661
132:348 133:157 134:297 135:72 136:276 137:265
138:351 139:168 140:171 141:342 142:539 143:411
144:500 145:90 146:549 147:443 148:723 149:368
150:153 151:489 152:414 153:207 154:45 155:520
156:303 157:367 158:284 159:697 160:360 161:458
162:908 163:205 164:631 165:576 166:278 167:637
168:1034 169:122 170:1129 171:185 172:11 173:1626
174:661 175:533 176:1317 177:2542 178:1870 179:305
180:1614 181:879 182:1414 183:472 184:620 185:1110
186:2641 187:1457 188:1959 189:1257 190:7285 192:7009
193:5475 194:4030 195:3370 196:1335 197:1061 198:4730
199:5476 200:6045 201:2530 202:8902 203:8958 204:4468
205:2624 206:2801 207:2745 208:3959 209:3655 210:2978
211:1606 212:2183 213:1997 214:890 215:84 216:5405
217:1723 218:636 219:313 220:1266 221:587 222:329
223:562

End of report
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