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.

Friday, October 25, 2013

[bgp-stats] Routing Table Report - Brisbane view

* BGP Routing Table Analysis Reports *
Routing Table Report 05:00 +10GMT Sat 26 Oct, 2013

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

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

BGP routing table entries examined: 465210
Prefixes after maximum aggregation: 187821
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 233099
Total ASes present in the Internet Routing Table: 41129
Prefixes per ASN: 11.31
Origin-only ASes present in the Internet Routing Table: 35366
Origin ASes announcing only one prefix: 16296
Transit ASes present in the Internet Routing Table: 5756
Transit-only ASes present in the Internet Routing Table: 145
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: 787
Unregistered ASNs in the Routing Table: 205
Number of 32-bit ASNs allocated by the RIRs: 5249
Number of 32-bit ASNs visible in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 12414
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 840
Number of addresses announced to Internet: 2651662140
Equivalent to 158 /8s, 13 /16s and 39 /24s
Percentage of available address space announced: 71.6
Percentage of allocated address space announced: 71.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 161968

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

Prefixes being announced by APNIC Region ASes: 108770
Total APNIC prefixes after maximum aggregation: 33156
APNIC Deaggregation factor: 3.28
Prefixes being announced from the APNIC address blocks: 110860
Unique aggregates announced from the APNIC address blocks: 46902
APNIC Region origin ASes present in the Internet Routing Table: 4851
APNIC Prefixes per ASN: 22.85
APNIC Region origin ASes announcing only one prefix: 1228
APNIC Region transit ASes present in the Internet Routing Table: 823
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: 1
Number of APNIC addresses announced to Internet: 729441596
Equivalent to 43 /8s, 122 /16s and 101 /24s
Percentage of available APNIC address space announced: 85.3

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: 161642
Total ARIN prefixes after maximum aggregation: 81073
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162491
Unique aggregates announced from the ARIN address blocks: 75903
ARIN Region origin ASes present in the Internet Routing Table: 15856
ARIN Prefixes per ASN: 10.25
ARIN Region origin ASes announcing only one prefix: 6009
ARIN Region transit ASes present in the Internet Routing Table: 1612
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2
Number of ARIN addresses announced to Internet: 1073219328
Equivalent to 63 /8s, 248 /16s and 7 /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: 118282
Total RIPE prefixes after maximum aggregation: 61166
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 121923
Unique aggregates announced from the RIPE address blocks: 78881
RIPE Region origin ASes present in the Internet Routing Table: 17482
RIPE Prefixes per ASN: 6.97
RIPE Region origin ASes announcing only one prefix: 8299
RIPE Region transit ASes present in the Internet Routing Table: 2750
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1
Number of RIPE addresses announced to Internet: 656590848
Equivalent to 39 /8s, 34 /16s and 200 /24s
Percentage of available RIPE address space announced: 95.5

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: 51860
Total LACNIC prefixes after maximum aggregation: 9740
LACNIC Deaggregation factor: 5.32
Prefixes being announced from the LACNIC address blocks: 56855
Unique aggregates announced from the LACNIC address blocks: 26698
LACNIC Region origin ASes present in the Internet Routing Table: 2030
LACNIC Prefixes per ASN: 28.01
LACNIC Region origin ASes announcing only one prefix: 562
LACNIC Region transit ASes present in the Internet Routing Table: 380
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2
Number of LACNIC addresses announced to Internet: 141014016
Equivalent to 8 /8s, 103 /16s and 180 /24s
Percentage of available LACNIC address space announced: 84.1

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: 11594
Total AfriNIC prefixes after maximum aggregation: 2561
AfriNIC Deaggregation factor: 4.53
Prefixes being announced from the AfriNIC address blocks: 12241
Unique aggregates announced from the AfriNIC address blocks: 4004
AfriNIC Region origin ASes present in the Internet Routing Table: 669
AfriNIC Prefixes per ASN: 18.30
AfriNIC Region origin ASes announcing only one prefix: 198
AfriNIC Region transit ASes present in the Internet Routing Table: 132
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1
Number of AfriNIC addresses announced to Internet: 48077312
Equivalent to 2 /8s, 221 /16s and 154 /24s
Percentage of available AfriNIC address space announced: 47.8

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 2714 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2139 11550 641 Korea Telecom (KIX)
7545 2096 319 112 TPG Internet Pty Ltd
4755 1782 391 187 TATA Communications formerly
9829 1557 1241 45 BSNL National Internet Backbo
9498 1206 309 74 BHARTI Airtel Ltd.
9583 1187 90 513 Sify Limited
7552 1154 1080 13 Vietel Corporation
24560 1091 380 164 Bharti Airtel Ltd., Telemedia
4808 1053 1951 303 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 3059 3689 58 BellSouth.net Inc.
22773 2188 2941 140 Cox Communications, Inc.
18566 2058 379 180 Covad Communications
1785 2034 684 129 PaeTec Communications, Inc.
20115 1681 1653 612 Charter Communications
4323 1626 1117 419 Time Warner Telecom
701 1504 11145 781 UUNET Technologies, Inc.
30036 1387 313 577 Mediacom Communications Corp
7018 1335 17778 865 AT&T WorldNet Services
6983 1293 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 1808 544 17 OJSC "Vimpelcom"
34984 1361 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1085 395 831 Akamai Technologies European
31148 1000 44 19 FreeNet ISP
13188 883 99 61 TOV "Bank-Inform"
6830 774 2328 427 UPC Distribution Services
8551 755 370 41 Bezeq International
12479 686 800 49 Uni2 Autonomous System
35228 540 246 16 Avatar Broadband Limited
34744 515 158 54 SC GVM SISTEM 2003 SRL

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 3459 1780 88 NET Servicos de Comunicao S.A
10620 2610 424 240 TVCABLE BOGOTA
7303 1725 1135 234 Telecom Argentina Stet-France
18881 1490 844 20 Global Village Telecom
8151 1333 2825 416 UniNet S.A. de C.V.
11830 865 364 15 Instituto Costarricense de El
27947 819 94 94 Telconet S.A
6147 789 373 27 Telefonica Del Peru
6503 785 434 64 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia 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 1864 112 5 Sudanese Mobile Telephone (ZA
24863 882 338 30 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 409 956 9 TEDATA
24835 294 144 9 RAYA Telecom - Egypt
3741 258 921 216 The Internet Solution
36992 226 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 221 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 3459 1780 88 NET Servicos de Comunicao S.A
6389 3059 3689 58 BellSouth.net Inc.
17974 2714 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2610 424 240 TVCABLE BOGOTA
22773 2188 2941 140 Cox Communications, Inc.
4766 2139 11550 641 Korea Telecom (KIX)
7545 2096 319 112 TPG Internet Pty Ltd
18566 2058 379 180 Covad Communications
1785 2034 684 129 PaeTec Communications, Inc.
36998 1864 112 5 Sudanese Mobile Telephone (ZA

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 3059 3001 BellSouth.net Inc.
17974 2714 2625 PT TELEKOMUNIKASI INDONESIA
10620 2610 2370 TVCABLE BOGOTA
22773 2188 2048 Cox Communications, Inc.
7545 2096 1984 TPG Internet Pty Ltd
1785 2034 1905 PaeTec Communications, Inc.
18566 2058 1878 Covad Communications
36998 1864 1859 Sudanese Mobile Telephone (ZA
8402 1808 1791 OJSC "Vimpelcom"
4755 1782 1595 TATA Communications formerly

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.
62734 UNALLOCATED 8.31.128.0/24 6939 Hurricane Electric
62773 UNALLOCATED 8.35.180.0/22 3356 Level 3 Communicatio

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

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
100.100.0.0/24 4847 China Networks Inter-Exchange

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

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

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 36086 Broad Communications Technolo
23.91.0.0/19 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 40676 Psychz Networks
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c
23.91.164.0/22 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
/13:480 /14:922 /15:1637 /16:12861 /17:6696 /18:11095
/19:22885 /20:32662 /21:35258 /22:49520 /23:43083 /24:247482
/25:44 /26:34 /27:53 /28:36 /29:28 /30:31
/31:0 /32:0

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

ASN No of nets Total ann. Description
18566 2011 2058 Covad Communications
36998 1829 1864 Sudanese Mobile Telephone (ZA
6389 1709 3059 BellSouth.net Inc.
8402 1508 1808 OJSC "Vimpelcom"
22773 1454 2188 Cox Communications, Inc.
30036 1235 1387 Mediacom Communications Corp
11492 1197 1238 Cable One
1785 1084 2034 PaeTec Communications, Inc.
6983 1034 1293 ITC^Deltacom
22561 965 1241 Digital Teleport, Inc

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

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

1:856 2:815 3:3 4:17 5:998 6:20
8:611 12:1888 13:3 14:858 15:11 16:3
17:17 18:19 20:20 23:487 24:1735 27:1618
31:1484 32:45 33:2 34:5 36:82 37:1840
38:915 39:4 40:181 41:3169 42:247 44:13
46:2020 47:7 49:683 50:825 52:12 54:39
55:6 56:2 57:26 58:1102 59:575 60:358
61:1458 62:1201 63:1978 64:4555 65:2338 66:4138
67:2116 68:1098 69:3277 70:876 71:490 72:2019
74:2562 75:328 76:309 77:1166 78:1068 79:656
80:1276 81:1014 82:659 83:635 84:583 85:1239
86:415 87:1009 88:563 89:1650 90:155 91:5651
92:617 93:1595 94:2032 95:1596 96:508 97:343
98:1047 99:39 100:31 101:365 103:3476 105:525
106:143 107:213 108:524 109:1909 110:971 111:1088
112:581 113:808 114:726 115:1025 116:981 117:816
118:1177 119:1272 120:396 121:747 122:1838 123:1252
124:1330 125:1458 128:612 129:217 130:312 131:654
132:341 133:158 134:535 135:67 136:277 137:265
138:351 139:173 140:175 141:333 142:530 143:419
144:498 145:89 146:515 147:396 148:704 149:355
150:143 151:592 152:410 153:205 154:49 155:488
156:282 157:370 158:282 159:683 160:356 161:480
162:804 163:206 164:631 165:568 166:257 167:624
168:1037 169:127 170:1121 171:181 172:25 173:1607
174:682 175:508 176:1266 177:2325 178:1943 179:195
180:1600 181:779 182:1338 183:454 184:661 185:947
186:2649 187:1494 188:1850 189:1287 190:7173 192:7042
193:5399 194:4037 195:3319 196:1319 197:1021 198:4692
199:5444 200:6086 201:2524 202:8868 203:8963 204:4451
205:2624 206:2748 207:2829 208:3982 209:3633 210:2948
211:1563 212:2142 213:1972 214:894 215:91 216:5379
217:1689 218:621 219:312 220:1272 221:566 222:326
223:539

End of report
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